Is sturdy and works great for the price, but be careful with the adjustment. Make sure you place the screw pin into the hole all the way, and don't miss the hole. It is actually possible to screw the adjustment knob in but miss the hole - it happened to me; in this case, the only thing holding the bench up is weak friction, and the bench will eventually drop out under you because you didn't secure it properly. I know it sounds stupid, but because of how short the adjustment knob screw is, it can be easy to mistakenly think you screwed it into the adjustment hole properly.
My advice to the manufacturer is to make the adjustment knob screw longer, since it would prevent a potentially dangerous user error.