Haven't had it for long but seems pretty good so far. I'm 6' 2" ish 175lbs and it fits me well; headrest could use a little bit more upward range but the rest of the dimensions work fine. Good quality good size and an excellent price; hard to beat.
I am a physical therapist and this is a great chair for ergonomics. However I was given the wrong color but already opened it so I will live with this color instead of the black.
Chair arrived promptly. It was easy to put together. Comfortable seat for long work day. The only issue is the seat does not stay raised. I am short and weigh 125 so have seat raised to max. Slowly throughout the day it sinks down so I am adjusting constantly. I do not see anything under the seat to adjust.
This chair is designed for comfort. The chair back is curved to hug your back and the seat is curved the same way. Would highly recommend this chair. My only complaint is the color choice. I would have liked it in any shade of brown.