I recently had my trimmer die on me. I was irate until I looked when I had purchased it- over 7 years ago. The battery won't charge and it won't turn on. The blade needed a factory replacement at five years. Other than that, it was a solid trimmer and was used almost daily for 7 years straight. I bought the Wahl hi vis pro trimmer to replace it.

The Good:
- This is the most ergonomic shaver I've ever used. It feels comfortable to hold and it's very lightweight. But that doesn't mean it lacks power, no sir, it cuts through my 4 day old beard of thick hair cleanly and effectively. I make sure to wet my face and hair with hot water first and pat dry.
- Improvements... I am a proud owner of the previous model which is basically the same but for two modifications. 1) The port where the charging cord goes into is more robust now.
And 2) The power ON/OFF button is more responsive than the older version.
- The T-shaped blade is all I need to shave my face clean in 20 minutes. And that's with periodic breaks to brush the blades clean after shaving each quadrant; left side of face / right side of face / left side of neck / right side of neck.
- My older model is working fine after 3 years, so I'm confident that this new one will be just as hardy. Come to think of it, I'll give the older one away to my brother who thinks other brands are better.
- Speaking of which... the blades on Wahl shavers are made better and are sharper. I've been using Wahl shavers for 2 decades. During that time, I've also used 4 other big-name brands in shavers. Those shavers have flat-pressed blades because they cost less. There is a big difference is cutting ability. Look at videos online to see the difference between a stamp-pressed knife blade vs one that is created from a solid block of steel. Totally different levels of quality.
- And you can order non-rusting stainless steel blades, dual-foil shaver head, a "detailer" head for more precise cuts and others using the leaflet which is included.
- The mini carrying bag is made of a thicker material than I usually get with shavers. And it's not cheap vinyl.
- Built-in travel lock. Press and hold the power button for 5 seconds and the chances lessen that the shaver will turn on accidentally while traveling. Press for 5 seconds to unlock.
- It fully charges in about an hour. blinking light = charging, steady light on = fully charged. Do not use while plugged in. If you see the light blinking while shaving, that means you have less than 15% battery power remaining.
- If anything should go wrong, I can attest to this company's excellent 5-year warranty.

The Bad:
- Hold the blades facing down when lubricating. Do NOT allow any oil to flow back into the motor housing cause that will cause permanent damage.

and The Ugly:
- Some reviewers state that they would've liked better instruction on how to switch-out the blades. The included instruction sheet with its 2 little diagrams doesn't really help.
Basically, hold the shaver in your hand with your thumb on the cutting part of the blade. With your other hand, cup the underside of the blade so that it doesn't fall to the ground. Then gently push the blade off with your thumb. In order to put it back on, insert the bottom of the blade first and then push it back on in reserve order.

This is a great product. Cuts the hair pretty close to the skin which is great because I don't have to use a razor and deal with irritation and bumps.

OK, I have to say that with this purchase, Wahl has made me a customer for life. I've had this unit for 7 months, and there's no way I'm giving this baby up.

The body is solid and heavy, much heavier than I had expected. I don't know if it's just that solidly made or if they have added weights, but when you pick it up, you'll know you're holding a very solid object. That's not a negative, the weight actually makes it a bit easier to control in delicate trimming situations.

The blades are also very sharp. You could cut yourself if you use it without a guard. After 7 months of daily use, they remain as sharp as they were.

The lithium battery is great. NEVER get anything else. I've recharged this razor twice since I bought it, and once was just to be sure because it had been a long time and I was going on a trip. It doesn't suffer from power fade and it stays charged. In a way, that's a problem, because it goes full throttle until it literally stops. Literally. The charge LED does blink to let you know when it needs charging, but the charge lasts so long that you just don't notice it. That one qualifies as a first world problem - my trimmer charge lasts too long.

Please note: the description reads (or at least did read) that the unit includes the adjustable blade. That's incorrect. It includes just about every size and attachment you could ever want, but it doesn't include that accessory. For most guys, that's not a problem. It was for me, however. I called Wahl just to see if such an adjustable attachment was available. That's where they hooked me forever. Ok, first, when I called the 800 number, a human being answered. I know, right? An actual human being! And they were friendly!! I didn't know what to do. What button do you push to say hello? Anyway, I asked for customer service, and she said she would be glad to help me. No transferring me around the system? One would almost think they cared about their customers. I told her what I was looking for and what model I had, and to my surprise, she said, oh yes, they could provide that. I whipped out my credit card to purchase the attachment, and then didn't need it. They were happy to send the part to me free of charge, and they even paid the shipping. She did apologize, however, because it wouldn't be ready to ship for a week or so. I called back about a week later to see if it had shipped (ok, I was impatient and wanted to use my new toy). They had all the information immediately available and confirmed that it had shipped as promised. That kind of service is rare, and the unit could have fallen apart at this point and I still would have bought the next unit from them.

So, to sum up, this is a great product from a great company at a reasonable price. You would be a fool to buy anything else.

Edit 2015-12-29: I've had requests for a link to the adjustable blade Wahl sent me. I don't have a link, but i have posted a picture so you know what's available.

This trimmer has a solid construction for sure. The problem, i find, lies within the guides. The 8 guides that come with it in different sizes to cut hair are somewhat flimsy. I feel they will break easily and probably before anything goes wrong with the trimmer hence the reason for the 4 stars. I have only had the trimmer for a a couple days and it is nice because it has a ear/nose hair trimmer with a detailer and hair cutter in it. I love the solid steel construction which makes it sleek.
Another problem i have had is that i find i have to hit the power button several times before the trimmer actually turns off. This doesn't happen every time i hit the power button but it has happened several times.
Another sort of annoyance is that the trimmer does not run when plugged in. It has to be charged to run. One of the things i have found useful in other trimmers is when the battery runs out i can plug it in and use it but this is not the case with this trimmer. There is an indicator LED light to let you know battery life which can be helpful.

UPDATE 5/31/12
The blade has started to show signs of rust. It is still useable but it is rusting which is not cool. Yes i oil it and stuff but sometimes ill use it in the shower and maybe this is the reason it rusts. i dont wipe the blade down after i use it. The only time water hits it really is when i wash it off after i use it to clean away the hair.
The largest guide which is a No. 8, doesnt fit the clippers well at all. It doesnt snap into place. it is still useable but just have to be careful otherwise it falls off.
The battery still lasts a long time which is good.

UPDATE 6/14/12
Ok, the trimmer blade is more rusted then before. It really sucks. I am thinking i will have to purchase another trimmer with a ceramic under blade. The rusted blade on this thing sticks together now so now i have to push the blade with my finger to get it going. The positive is the body of the trimmer is in great condition, still looks brand new. the battery still lasts a long time.

update 7/22/13
The power button fell off rendering the entire thing useless. well built trimmer aside frome the plastic guides, and power button. if the unit is sturdy but the supporting pieces aren't, its still not the best.