The screw that tightens around the threaded tube isn't enough to keep it in place. You can tighten it all you want, but as soon as you stop playing it's going to start rotating. It get's a bit frustrating when you want the throne to stay fixed. If you don't mind a rotating throne, then this will definitely work for you. Other than that issue, it's a pretty great throne. Comfortable to sit on and has very nice and sturdy legs. It's just the tightening issue that ruined it for me.
I purchased this for use in my teaching studio on the students drumkit. It enables quick and easy height adjustment for each student, and also allows them to find the most comfortable height themselves - my younger students love it! The base assembly is good quality and rock solid, and the seat top is comfortable. My gripe is that the seat top and pole are not a snug fit, so there is a little movement here. Also the pole and the base itself are not a great fit either which makes for a slightly wobbly seat. It is very reasonably priced so I guess you get what you pay for.