UPDATE - July 22, 2019 - the unit continues to impress with continual boost. If anything, the boost has improved on some days (making me think that environment is impacting the cell signal). Regardless, I continue to be impressed with not only the product, but with Sina and the team at the Repeater Store. BTW, had to add that Sina is not just a sales person - Sina is the CEO!! Imagine that, the CEO of a company that took time on a holiday to ensure that I had the best customer service possible!! Definitely a five star company supporting a five star product.

Original Post - Make no mistake, this set up is not cheap at $900!! That said I can say without any hesitation, this sucker WORKS! I have a house in a rural area on a lake. At best, I'd get two bars and 4G. Most times, it was a single bar - and even then, there were days when I would lose signal and have data lag or no data at all on my AT&T iPhone. Couldn't even hotspot to my iPad. AT&T signal simply sucked due to lack of coverage (inside or outside). I purchased the GO-X because of other positive reviews and after discussing by text the needs I had with a salesman (Ray Martinez). Ray had me check out cell signals using the iPhone Field Test mode while I stood on the roof of my lake house. He recommended the unit I purchased due to poor external signal.

I ended up installing on July 4th spending about two hours on the roof installing the pole (included with the kit) and mounting the directional antenna to that pole (instructions were not great, but I like to think I'm fairly mechanically inclined so figured it out). I knew where the nearest cell toward was so pointed the directional antenna in that general direction. I then ran the cable down the side of the roof, down towards the deck and through a first floor window to test. After connecting the antenna to the GO-X unit, then connecting the internal antenna, I fired it up. I had to download the GO-X app and wait for the software to update. Not a biggie. Then the GO-X did its thing and after a few minutes, found the cell towards and started boosting signal. BAM - what a difference!! I went from one to two bars with 4G to a full 4 bars with LTE. More importantly, data speeds were not only reliable, but super quick. I streamed Netflix and Amazon Prime video through my cell phone into my iPad (through hot spotting). No lags, buffering, or hesitation. The APP showed 3 to 4 (out of 5) bars of network strength and a boost of 7 (green) to the internal antenna.

I then spent the next 3 to 4 hours making the install permanent, including running the cable from the external antenna to the house along some siding down to the deck and then punching through the siding, plywood sheathing and into the drywall where I ran it to the unit. I mounted the GO-X unit below a window (hidden by some curtains) and hooked the internal antenna with a wire running up the side of the window (again, hidden by a curtain). I mounted the internal panel antenna to the wall above the window where it has the best shot at broadcasting throughout the rest of the house.

I did have an issue with the internal cable run as the kit has two 30' RS400 cables. The first 30' cable was fine to run from the roof of a two story house, down the side and into the great room. The second was way too long for the run from the GO-X unit to the internal antenna. I pinged customer support to see if they could do a trade-in for a shorter cable. No luck there, but the salesperson graciously gave me a coupon that was good for a 5' cable. All I had to pay was shipping ($13.44). Sina was great in making sure I had the right size cable and then sending me the coupon for 100% off of the cable - with shipping costs only.

I am really happy with this product. Yes, it took me nearly the entire day to install, but is well worthwhile. I am typing this review on my iPad hotspotted to my iPhone that is getting full bars and LTE thanks to this product. Bottom line - it works and the customer service has been awesome. I'm glad I invested the $900 to get the best booster out there.

Amazing performance. Before: couldn't make phone calls, couldn't even text let alone a thing more advanced. After:
the Works for multiple users in the house.
The setup manual reads like the person is there in the room with you.
Initially I saw my quality was fluctuating, so texted and they diagnosed issue and 5 minutes later I had even better performance.
Recommend recommend recommend.

Unlike most boosters on the market, this booster can only be used on one carrier's frequencies at a time. You can specify which carrier easily though. Restricting the frequency bands allowed Waveform to increase the amplification of the signal to the maximum allowed by the FCC. If thinking of purchasing this device, take advantage of the companies tech support at waveform.com. The will give you guidance on testing your current signal strength and make the determination if you have the signal strength and quality required to successfully use this booster. After the purchase if you send a text to the number in the instruction manual you'll get a link to the software needed to setup the device. As a plus, tech support will reach out to you and offer to help with the installation. Highly recommended that you interact with them to make the process easier and successful. Installation isn't technically difficult, but finding the correct location for the antenna and mounting may add some challenges. You need some basic construction skills to climb ladders, probably drill holes into the house and run cables. I had enough single strength and quality to mount the antenna in my attic, but the typical installation is outside along a roof line. The quality of everything in the kit was excellent. The kit comes with RS400 cable vs the RG11 cable provided with most boosters. This cable has less signal loss, but it a little harder to work with because of its thickness and stiffness. It is a more expensive cable. The kit also comes with two inside antennas; a flat panel antenna and a dome antenna. This gives you the opportunity to experiment and determine which one works best for your situation. Even though two antennas are provided, there's only enough parts to install one. You can utilize the second antenna if you purchase an additional splitter and possibly some cables. Tech support is more than helpful in this respect and will prepare a cart with the necessary parts including a discount. Now the important part, performance. For me I went from 1 or 2 bars on my phone to 5 bars in the areas covered by the indoor antennas. Although the number of bars isn't the ultimate parameter to determine performance, if you're using the same device it does at least indicate improvement. I was more concerned about data speeds and used an internet speed test to test that parameter. There is more than booster performance at play here since you are still limited by the carrier and their infrastructure. I averaged about a 50% better download speed and a phenomenal increase in upload speeds. I went from less than 1 Mbps to 12 to 15 Mbps on upload speed. Since my home internet is through the cellular network, this is significant. I was using VOIP for my phone and prior to this booster is was almost unusable. Now, my VOIP calls are good as they were with the landline for the most part. Bottom line is that I'm happy with the product. I may have gotten away with a less expensive booster, but in my experience, it's always works out better to start with the best you can afford. Waveform also gives you 90 days to determine if this was the answer for you. Take advantage of their excellent tech support before and after the purchase! My experience with tech support was via text messages. There is an inherent delay in responses, but they are reasonable delays and they always got back to me.

What you hear is the truth. I run a hunting lodge , it has a metal roof. If I ever do have a signal inside of the lodge it will not last long enough to finish a conversation. Many times the phone rings twice and stops. Many times I have no signal at all inside. Can't even send a text. Clients try to call me and tell me my phone went straight to voice mail. I generally get one bar on my phone outside in the yard. That's where I go to make my calls. I just installed this CEL-Fi GO X yesterday. I have two bars inside, sometimes three. No more dropped calls. I can even watch videos on my phone. Customer service was the best. Literally texting me back and fourth during my install. I have previously wasted my money on a cheap unit. Spend a few bucks extra. This works.

Update. I was happy with two to three bars inside. Heck, I was only getting one outside! Juanca, from the waveform team contacted me and after doing some test on my system instructed me to make some changes using the app. I did , now I have all four bars inside! Folks, if you have a signal outside, this will work getting you what you need inside. The support team is the best I've ever dealt with with anything I have ever purchased. Do not hesitate to buy this product. God bless

I recently installed this cell signal booster on a large home for orphans (Aloha House of Hope) we are building on 200 acres in the middle of the woods in a very rural area of Virginia. Since i am building the house myself I need reliable cell service to keep in contact with subs, suppliers, etc. Our cell service was spotty at first, but useable. Lately the signal had degraded to where we were only able to get at best an LTE (4G) nsignal reading of -112db. Many times the signal would degrade to either 3G or 1X, thus rendering it useless.

After doing a ton of research on the various boosters available, we opted for the Cel-Fi Go X system. We own two WeBoost systems that we use on other buildings in the near vicinity of the Aloha House of Hope, and although they do work, they don't work as well as we would like. Based on our research, the GO X system had the greatest amplification of the various products out there. It isn't cheap, but when you need reliable cell service in a rural area, you pay whatever it takes. I would also add that we do not have access to high speed internet, so we need a strong cell signal for that as well. We purchased our GO X system through Amazon from The Repeater Store. Our system is comprised of the outside Yagi antenna, two interior panel antennas, the GO X booster and related cables and connectors.

I installed the Go X system yesterday and couldn't be more pleased. I had several text message exchanges with Ray at The Repeater Store. Ray was always very prompt in getting back to me (either immediately or within an hour) and provided me with very detailed and helpful information regarding my installation questions. Having installed two WeBoost systems before, I knew that placement of the outside antenna is crucial to getting the best signal. Also, the Yagi antenna we used is directional, so having it point in the proper direction is also essential.

To start with I used a third party app on my Iphone called Open Signal. It detects the cell phone signals your phone is using, shows the strength of the signal, and provides a map showing the various cell tower locations close to you. It also has a directional function that has a round dial with an arrow pointing in the direction of the cell tower that your phone is locking onto. This works much like a compass and the arrow moves as you rotate your phone, always pointing in the direction of the cell tower currently being used by the phone.

Since this is a large three level home (8,000+ square feet) I climbed out on the lower roof and walked around at different locations to find the strongest signal. What was interesting was that as I walked from end of the lower roof to the next, the phone would change cell towers and the Open Signal locator arrow would swing around point in the opposit direction. I did this several times. As an aside, an easy way to get your phone to relocated a signal is to turn on "Airplane Mode" then turn it off. This causes the phone to search for a cell signal. This eliminates the need to wait and wonder if your phone is locking onto the strongest signal.

Ultimately I decided it was well worth the risk and trouble to climb up onto the highest peak of the gable roof and install the antenna at the end of the gable. This roof is about 40 feet off the ground and is a 12/12 pitch (45 degrees). I've posted pictures showing the location of the external antenna after it was installed. To reach the highest gable, I climbed out onto the lower roof that is only a 5/12 pitch (you can walk comfortably on that type of roof), and took an extension ladder with ladder hooks installed. I shoved the ladder up the large 12/12 pitch roof section, hooking it over the top edge of the gable roof. You can see the ladder in the picture I posted. Then it was merely a process of climbing up the ladder, swinging my leg over the roof ridge (basically straddling the ridge), and scooting out along the ridge to the edge of the gable. From there I leaned over and screwed in the antenna bracket to the facia board of the gable end and installed the antenna. While up there, I used the Open Signal app to check the direction of the cell tower. I also ran the antenna cable back into the house.

Since the house is under construction, we plan on installing the panel antennas inside the walls at the end of the house on the two lower floors where reception was the weakest. This makes for a totally invisible installation. For now though, I temporatily mounted the panel antennas on the unfinished walls.

Next, I installed X Wave App you use to configure your GO X booster. It took several minutes to install the app and then another several minutes to update the app. The app then locked onto the booster via bluetooth. From there you can check various settings. The one function I used was the antenna location function. That allows you to point your external antenna in various locations to check the signal strength. This required me to climb back up onto the roof ridge again. Fortunately, I was still able to pick up the bluetooth signal to the booster back in the house. I rotated the antenna to various cell tower locations that Open Signal was showing. From there I used the Wave app to test the strength of the signal of each location the antenna was pointing. Each reading takes about 30 seconds. I then rotated the antenna to the strongest location and went back inside to see the results.

WOW! What a difference. I went from no signal or at best a signal of -112db to a whopping -72db. This would equate going from no bars or barely one bar to 4-5 bars, depending on your phone. I could go into areas of the house where previously it was guaranteed I would totally lose all coverage, to now getting a very strong signal. Ray at The Repeater Store, was kind enough to check my antenna and booster signal strength remotely from his location to confirm I had a very strong signal.

We also plan on running a separate cable and interior antenna to an apartment above the garage and Ray told me exactly what I would need (an expanded splitter and longer cable).

One final note I would add. In choosing a location, you also need to give consideration on how you are going to ground your antenna to protect it from lighting strikes. We get a lot of thunderstorms in our area and have had external electronic products damaged from lightning (primarily power gate openers). Unfortunately in the location I chose that was best, we are not closed to any of the installed grounding rods. In the near future, I will be installing another ground rod close to the external antenna location and running a 10 awg wire down to the grounding rod. Not a complicated procedure, but you need to keep this in mind.

In conclusion, I the GO X system from The Repeater Store gets my highest recommendation. They have exceeded my expectations many times over. For the naysayers out there, I am not getting paid to write this review, paid full price for my system, and previous to this purchase, have had no experience with The Repeater Store nor with the maker of the GO X system.