Pretty good so far. Seems well made and sturdy. Clamp mounts securely to my desk. Typical of text translated into English, the instructions leave a lot to be desired, even with drawings. The problem I had was, there is a threaded hole (actually I think it might be what's called a nutsert) at the top of the mast that accepts a \wing bolt\" to tighten the tilt adjustment. The wing bolt would not thread past the bottom of the threaded hole and I didn't want to force it and the size is not specified (it's M6 x 1). I had to borrow a metric tap to chase the threads and get the wing bolt to work and secure the monitor. Not sure of the longevity of all the plastic fittings but we'll see."