I'm 6' 3" and find the chair to be comfortable for all day sitting. It was relatively easy to assemble. It has a lot of adjustments; Arms height lean forward/back etc. The lumbar doesn't seem to adjust or I haven't figured it out yet but I also haven't needed to change it. All around a good chair for a good price.
I’ve had my task chair for a week now and I really like it. My husband States that the directions were easy to follow and the chair went together with ease. I like that it goes taller than my my old chair which helps out with proper ergonomics. I greatly appreciate the adjustable arms and the fact that the back can be locked in or left flexible for a rocking motion. The mesh bag will provide good breathability in the warmer months. Purchasing it on sale was an added bonus.