The chair is fine, but if you are a taller person (6 feet or higher) the headrest is basically useless. Even at the highest setting it rests at one's shoulders. I took it off. The chair is comfortable otherwise.
At this price point, this is a very nice chair, after using it daily for over a month. Assembly is easy enough like most chairs. The Hex key required to put it together is included. It requires few steps and it's documented, with well organized hardware.
The seat cushion is a molded, dense foam. The back is all mesh, which I want, with a pronounced, and adjustable lumbar support. The headrest provides some adjustment. The recline angle can be locked in at a preferred angle, and of course it has pneumatic height adjustments. Also the angle of the seat cushion has three settings. The height of the armrests is adjustable and they can also swivel a bit.
It’s a decent chair for the money, however you get what you pay for. The ergonomics are fair. It’s comfortable. I wish it had adjustable (front and back movement) arm support. If you have a budget for a chair, I would say at least double or triple it. You we will be spending hours a day using it. It’s okay for me because I use it casually after work. This isn’t a work chair.
I thought I'd found th perfect computer chair but soon found out not for me. I really liked the seat having comfortable firm cushioning. The problem for me was it only raised up just over 20 inches from the floor. It was a real deal breaker so my search will continue.
I bought the HykenXL and i am soo happy with it. It is insanely comfortable and plenty of room for a bigger guy. I’m 6’1 330 and this is one of the comfiest chairs I’ve ever owned. It does lean back a little but I personally enjoy that. Seems really well made.