Well, I bought one and unboxed it and noticed that there was a screw rattling around inside it. Also, the face of it looked kind of scratched. I sent that one back and bought another.  This one had no screws and set up fine. But it does make a kind of low growling noise that many people are complaining about. It also makes a scratchy consistent noise. I might also move it to the floor, currently it is on my desk.  I hope it lasts.  It looks sturdy and well made, but only time will tell.