I am 5'10 and about 180 pounds and too big for this chair the base is small and while I can fit in the chair it doesn't feel comfortable and it almost feels that I will fall off it. And the seat cover for some reason is coming off.
Only issue with this chair is the arm rest. Everything is solidly built but the arm rest. They only can be adjusted up and down. With the modular design one can 3d print their own arm rest with additional features.
This was a phenomenal purchase! It was easy enough to assemble and ride the comfort stability and ergonomics that I was looking for. This is a great chair for working and for relaxing!