The chair iis comfortable and helps to correct any bad posture by not making slouching comfortable. It is ergonomic and not the kind of chair that one gets tired of sitting in. I only wish it had a heating pad like another product I have recently seen advertised. All in all the chair is good for anyone spending long hours sitting or with back problems.
Bought this for my wife who is petite size (5" skinny). Initially I was a bit concerned since many reviews said that this chair is better for the big and tall people. But It turned out that it can be adjusted to fit her quite well. I just set it up to the smallest configuration possible and it fits her well. The headrest is exactly where it should be with her sitting down. She was sitting on a kitchen chair before and had complained about developing back pain. This chair is so much more comfortable for a long period of sitting down.
At first I was unsure about how a mesh seat would feel but it honestly feels like I'm sitting on air. The back of the seat is also super supportive it helps with my back so much after a long day of work.