Very good chair and well worth the price
592754
Bought chair for my wife.  She loves it.  I assempled it (which is amazingly easy) and the pneumatic lift did not work.  I contacted the company and they immediately shipped me a new one.  I reolaced the lift and the chair has worked perfectly.  Very good chair and well worth the price.
370551
Great chair for the price, not cheaply made, sturdy, stable.
2028596
Very good chair for the money.  It took a little time to assemble but was straightforward.  I would buy it again.  This is definitely in between the cheap chairs and the truly nice, sit in them all week $800+ chairs.
2176831
I couldn't ask for a better chair, and also the price is great.
At work I have chairs that cost 900$ a piece, and this one beats them all.
the back is very soft and comfortable, but also ventilated so you don't sweat. the place for your rear is also very comfortable. and since I like to seat in a Turkish position, the movable handles are just great!
The chair is light and made of hard plastic, but in a very smart way (the structural engineering work is amazing).

A++++
1080424
Super comfy chair and great price. Only took 15 minutes to put together and is very sturdy. I would recommend
2317154
after looking at many different chairs I decided to purchase this one. I am very glad that I did. It is very big, very comfortable, and very good construction. Will not hesitate to buy another one.  I am 6'5" tall and 330 pounds.
2611875
What a great chair! Especially if you compare it to one that had no lumbar support, hot leather and a low back.

*** Assembly ***
The chair was actually quite easy to assemble. It's a bit on the heavy side, and when you get to where you're attaching the back to the seat, I placed the box it shipped in on it's tallest side, set the seat upside down on it so the armrests dropped along the side of the box, then attached the seat back as instructed.
In step two of the instructions make sure the threaded hole inside the square is at the bottom, face down (it will slide into the seat). The illustration shows two holes when there are actually three. I realize i'm a little slow sometimes and if you're like me, this might be helpful.
In my opinion, and perhaps someone with more experience assembling chairs could chime in, but I would think it's easier to install the base, set it on the wheels, then install the back. Following the instructions (step 5) felt really awkward.
All in all, assembly can really take less than 10 minutes so I give high marks for that.

*** Aesthetics ***
I'm don't care as much about aesthetics but this is a nice chair. I prefer it much more over the Herman Miller bulky front end Aeron. The high back of this chair throws off the symmetrical balance as it makes the seat seem a little dwarfed. Raising the seat seems to help with this a bit.
You'll want to wipe it down after putting it together. Mine was quite filthy, dust mostly, from storage I assume. The seat was covered with plastic so it didn't have any dust or marks.
One reviewer shared an image of the seat fabric in a wrinkled state. Mine looked exactly the same when I got the chair put together but once I sat in it for about 5 minutes it looked perfect.

*** Comfort ***
Immediate! After 10 minutes of adjusting that is. I'm 6' 1" and slim built, weighing in at 180 lbs. I have long arms and legs so finding a chair that has good height adjustments for the seat and arm rests was important. In fact, if I raise the seat all the way, my feet are barely planted flat on the floor, so this chair should be very well suited for individuals taller than I am. I've not been disappointed at all.

The lumbar support works really well, you just have to get used to the seat back dropping to the bottom if you go beyond the last adjustment. Once you've got the hang of that you can find your sweet spot. My back is so much more comfortable.

I don't have a head rest but for those who want one, I've heard one can be added. If I lean my head back to the top of the seat back I hit the base of my skull, so I would think a headrest would work nicely. If you have a tall torso you might have an issue.

The seat cushion feels just right to me. It's not hard but not so soft you fall into it. It's a thick foam with a fabric cover. Very comfortable.

The armrests are comfortable, not too hard, not too soft. You won't go home with your elbows aching.

The back is comfortable and the contours fit me nicely. The top of the back doesn't start curving away from me until about 2 inches above my shoulder blades so it really is a good fit. The mesh does feel like it gives a bit much when you are putting it together but it's very supportive when you sit down.

***Overall ***
For the price, this chair is perfect for my needs. It feels like a solid build. The plethora of adjustments make it possible - it seems - to accommodate any body type. I have a co-worker who is sitting in a Herman Miller that cost the company $700+ and this one feels just as good, if not better considering this is a foam seat rather than mesh. I would recommend this chair.

I will try to get a photo of me sitting in the chair as a reference to those similar in height/ build as me.
1418172
Really impressed with this chair, especially since it has that back support. The chair is comfortable and it was really easy to put together. I like the soft lining on the arm rest and the seat itself. I've had similar chairs to this one, but oftentimes the back support ended up wobbling even after I've checked all of the screws or one of the armrests ended up moving too. This is a solid chair, you can't go wrong with the price. Plus I've received this a day earlier, so props to the shippers!
1528163
This chair is easy to assemble and looks good - competes with any higher priced one.  With all its features, it makes for a very comfortable chair as well - very pleased with purchase.
84069
What a great chair!  I've just bought my second one.  Well-built, fairly priced, easy to assemble, and very comfortable.  Seat bottom is a little firmer than I would normally wish, but the overall comfort and support is very good.
4645987
This chair is comfortable and sturdy even for larger men.  Best office chair I've ever purchased.  Maybe the best I have ever used.  The assembly looks daunting but is not.  The instructions are simple to follow and I had this chair assembled in just a few minutes. I got this particular model at a very good price considering it immediately jumped $100 after I took the last out of inventory and is now more than double the price I paid.  Catch it when it is on sale and you'll be very happy.
4408508
Weighing in at 388 lbs I needed a substantial, well built and sturdy chair that was also comfortable to accommodate me. After considering many offerings, I chose this chair and it did not disappoint. Easy assembly, particularly if you use a socket wrench, it goes together neatly in about 45 minutes time. It is also a great value for its price as some similar chairs approached $500 or more and it comes in leather as an added bonus. Strongly recommend for big guys like me and would buy again.
4641630
I really like this chair a lot. It is comfortable, good looking, and well built. The only down side is the arms. The padding is a bit firm for my liking, and you cannot adjust the height. But it is easily a chair that I see myself working in for the next 10-15 years. If you are considering it, and it is in your price range, I say do it.
2456556
Great chair for the price. Fully adjustable, sturdy build quality, easy to assemble with or without instructions. Just know that the vinyl has sheen to it almost like patent-leather. The seat is pretty deep and slopes down at the knees - ok if you're larger, not so good if you're smaller. Expect minor imperfections from manufacturing as indicative of the price.
3640859
Great chair. It is very expensive but I think if you have the money and you are looking for something that will last for a LONG time, this is well worth the price. The quality of the material feels top notch, such a huge difference from the crappy Ikea chairs that I have been buying every few years. I look forward to coming home and sitting in it. Definitely not suited for a business environment and my wife hates the way it looks but it is great for the gamers man cave.
2168530
Love this chair.  It won't last forever (this is my second after 3 years) but price is worth it
4570670
Excellent professional quality chair.  Very sturdy and well built and the fabric is very comfortable.  I sit on it for hours and hours at my computer desk.  For the price I don't think you can find anything even close--this chair is much more comfortable than much more expensive brand name chairs.  Tilting mechanism is smooth and silent and very effective.  Lumbar support is fine--unlike many inexpensive office chairs, this chair doesn't have complex cushion shapes which invariably end up being uncomfortable.  Buy this chair and you won't be disappointed.  I'm sitting in it now!