Short and sweet review: if you're a non-traditional sitter like me, this chair is worth every dang penny. It may not be as cute or plush as other cross-legged chairs on the market, but this is the superior model for ergonomic sitting and is everything I hoped it would be. I have tried every other kind of non-traditional chair on the market (kneeling, ergonomic, backless, yoga ball, etc.) in an attempt to find something that achieves the same things this chair does for a fraction of the price, and can tell you that there's really no equivalent out there - honestly, I probably spent more money trying to find cheaper alternatives for this chair than I did had I just purchased it outright when I first saw it.Pros:- Easy to assemble- Versatile positions allow for ergonomic sitting/relief- Comfortable- Quiet wheelsCons:- Expensive- Not as soft/plush as other office chairs- Necessitates extra wheels (if replacing wheels)- Doesn't lean completely back- Slightly bulky for certain desk setupsLong review:Full disclosure, I've only been sitting on this chair for about four hours now, but I can already tell you that this is a) the most comfortable non-traditional office chair I've ever used and b) worth every penny.I can feel the difference in my posture - my back is straight, my hips are properly aligned, my shoulders are relaxed, I'm not hunched over or folded in half, and my feet aren't asleep (a big problem for lots of cross-legged sitters). I've already tried three or four different positions and all of them are more comfortable and achievable than the same positions with a regular chair and stool. I can see how some people say it's not as comfy and cushioned as a traditional office chair, but that's a personal preference that can be remediated with pillows or positional adjustment - I think it's totally fine. The chair doesn't lean back, but I've found that because my legs are positioned more centrally under my hips, I don't need to -lean- back so much as just scoot my back up against the backrest for support.Assembly was very straightforward and only took me about 20 minutes. The casters included with the chair are of good quality and slide smoothly, but one note: if you want to swap the wheels it comes with for something else (I prefer roller blade wheels), make sure you buy the replacement wheels in multiples of 7 (5 for the chair and 2 for the leg platform/rest), otherwise the wheels on the leg rest portion won't touch the floor. One other thing to note is that the leg rest is NOT height-adjustable, so it may be a bit bulky/tall for certain setups depending on desk height and style; I have a stabilizing leg in the middle of the underside of my desk that the foot rest bumps up against occasionally - it's not a problem to me, but I could see it being annoying to others.I'll come back and edit this review if my love for this chair changes, but I doubt it will - I absolutely adore this chair and my only regret is not purchasing it sooner.