We got two of these to have a bit of variation from the basic ceiling lights of our rehearsal room. For a 25 square meter space, they're okay, but might get a couple more.
The lights are very light and the plastic housing is not going to be road-worthy. Colour mix is fine, you can get decent basic colors and a nice white light out of this. Enough connections and options that you can start setting up a basic lighting rig, but durability and reliability are a big question mark.
The sound mode is so-so. I tried with just playing drums and the lights pretty much flash at their maximum rate, which is roughly a couple of times per second. Might work with music that has a steady bass beat, like electronic music such as techno etc., but the volume level needs to be correct. Too quiet and no reaction, too loud and it might just start flashing constantly.
The auto mode seems random and without connecting the lights via DMX you're not going to get multiple lights synchronized. With a controller you might find more use, but on their own, they're mostly a static mood-creator.