Comfy very adjustable cool and light weight - rolls around easily - great buy for the money and a good guarantee period - the headrest is a little too low for me at 6'3" even though I'm short waisted
I love the headrest. The armrests are too high for me even at their lowest point. I wish they swiveled. That is where the chair lost points. You need them to swivel to work with a mouse while resting your arm. Time will tell.
This chair is so amazingly comfortable to sit in (and the ergonomic supports are nicely adjustable (headrest and lumbar)). It was one of the simplest to build mostly because of excellent instructions and well organized hardware. I'm seriously grabbing another (this one was for my wife).