OK, so this repeater/booster works fairly well overall. Here is my experience with this unit:

Installation: I installed both the outdoor antenna and the booster/gain unit in my unfinished attic (and yes, I had to run an electrical outlet to provide power). I simply attached the outdoor antenna to the end of a spare piece of 2x4 board (~3' in length) and then attached that to an existing rafter to get to the highest internal point of my attic. In my house, I then penetrated a point near the center of my great room ceiling close to the edge where the wall meets, to mount the indoor antenna on the wall so it would sit close to the joining point (wall-ceiling intersection). The indoor antenna (IDA) was mounted upside down so the cable was facing up to go through the ceiling penetration (use a 7/8' drill bore). I used a scrap piece of drywall to cut a 7/8" circle with a utility knife (of course with a small divot for the cable) and some joint compound to fill the ceiling hole. While my attic gets cold in the winter, It is still always well above the -30-degree lower operating temperature limit.

Result: I had 1 bar on my phone throughout my house before installation (AT&T service). I had three bars on my phone in the upper reach of my attic where I mounted the outdoor antenna. Booster is indicating (on the display) the lower frequency bands (~700-850Mhz) were receiving 3 bars, while the higher frequency bands (~1700-2300Mhz) were topping out at 5 bars. After installation I now have 3 bars on my phone in most of my house around the great room area (where my indoor antenna is mounted). The rest of the house is either 1 or 2 bars depending on the distance from the antenna.

Feedback: 1. While the installation illustration shows a wide spread of coverage from the indoor antenna, I don't think the spread is as wide as pictured... coverage is much more cone shaped (originating from the antenna) then represented. 2. While centering the indoor antenna in your house (ideally in the most open room possible; family/living room if feasible), is your best bet, the coverage still has issues penetrating multiple walls. For example, if there is a closet in the "path" of the boosted signal to the point where you aim to get better coverage, your gain will be significantly decreased. 3. Unless your walls are made of paper, or this is put up in a wide-open warehouse/barn/garage, there is no way common residential consumers are going achieve 5000 square feet of coverage with this unit. My house is a 3200 square foot ranch and I still have dead spots after installation. This information should be better presented to potential purchasers, as the claim of up to 5000sqft coverage implies this unit is "more powerful" than others. 4. The connector from the booster unit to the indoor antenna should not be a N-type but rather an SMA type so penetration holes can be much smaller.

Great product!!! Good in homes with tin roofs

I purchased to see if this would take care of the cell phone difficulties we have and it does just that. My husband and I would have frequent phone calls that were dropped and go in and out due to poor cell area, this takes care of that. I like the install was fairly straightforward that you only need a few tools to get this up and running as everything else comes in the box. I like that it comes with a money back guarantee and has a 3 year warranty. I like that this gives me a connection like a landline.

I would've given it 5 stars but signal from antenna seems to fade ..seems to work like a cone, so the closer your gateway is to the antenna the better the signal.. but it took my gateway from 2 to 3 bars which is just ok.. to consistently 5 bars.. excellent

We live in a rural area and before the cell phone booster we barely had 2 bars. With the cell phone booster we get 4 to 5 bars 90% of the time.