I have 12 of these for band set ups. They have a nice tight beam angle, with very little spill. Reasonably fast motors, and the colour curve is good. none of this "50% blue then off" that you get with a lot of low cost LED fixtures.
Build quality is good, although it is worth checking the internal screws/bolts every few months (6) as they do work loose over time. Especially if used at high speeds (dance events etc)
Noise is the usual whining of motors at this price range. Its not usually a problem, but can be for quieter, theatre type shows.
Only disapointment for me is the tilt range. It doesnt go much past 90deg horizontal. But that IS in the specs, so shouldnt be a surprise.
Pros
Small
Lightweight
Good dimming curve
Cons
bit noisy
slightly shorter than ideal Tilt range