The chair was easy to assemble and is attractive and sturdy. However, the seat can only be adjusted to 4 positions and the angle of the kneeling pad does not change appreciably. I am 5'3" 120 lbs and still searching for a position that I can maintain comfortably for an extended period. I did not put the casters on and it slides well on the carpet, but would have been quite high had I used them.