I bought it to play with my KAT KT3 e-drums and I really can't use it. First it's quite small, and it can't go high enough, I don't know because there's a piece missing or just it's a very small seat. Second, the stability is a bit weak: The legs don't open enough and if I balance on it I'll probably fall on the floor.
I've had other seats as I've been playing drums for years, but definetly I won't buy this one again, unless I want my future child to seat on it while playing drums and I don't mind if he falls on the floor.