For ages, I've had trouble sitting normally in a desk chair. I always end up cross legged, which eventually became hell on my ankles and hips. The standing desk and the yoga ball didn't work for me - I fidget too much. I considered this chair for probably a year before I finally gave in, and I waited about a month before writing a review to get past the novelty factor. I can say wholeheartedly this chair is awesome. I did buy the more expensive version with the adjustable back and I don't regret that. The seat is firm but not hard. The back is low but perfect for lumbar support. Mostly though I really love the foot stool portion that swings with no resistance. I move frequently between different sitting positions and it feels natural, not like I'm unfolding myself from a desk chair like I have in the past. Overall, very happy with this purchase.