Received the chair about 1.5 months ago. Assembly went well and was fairly easy. All parts were there. The chair has been comfortable and is holding up well. The only complaint I have is that the lumbar support does stick out a bit far and can't be pulled in enough.
When purchasing this chair I used their "sizing chart" based on my height. But apparently being 6'2" I'm supposed to be a lot heavier or thicker around the waist. I have to use a pillow behind my back in order to feel supported or to even have my back up against anything. The seat does move front to back but if I slide all the way back my feet don't touch the floor even when the chair is all the way down. Aside from that, the seat is really comfortable to sit on and the arm rests are perfect.
I am 5"1 and the chair fits me well, despite the documentation saying 5"6 or taller. I think the chair is pretty well-made. It was not too difficult to assemble. I do wish I could move the backrest a little bit away from the chair. Also, I cannot turn the knob that is supposed to loosen/tighten the tilt function. However, I do not plan on tilting the chair.
Build quality seemed fantastic, was easy to put together and support was responsive. However the overall default position of this chair is at way to far of a recline, I felt like I was lying back in it, and it was too far back to sit and actually type or use a mouse. Staples sent a new control piece, was the same as the original... couldn't try one in the store and it seemed like it was just the way the chair was designed. Sent it back, on the look out for another option. Price was fantastic, kinda stinks.