I have two of these lights at the moment, I am very pleased with them and I am going to get more. I am a DJ for modern jive partner dancing. I play to an audience of anything from 50 to 150. I tend to use them in sound activated mode, shining them off the ceiling or the wall to create ambient light. They are quite bright, creating a "usable" light cone for about 5 or 6 meters. If you are familiar with the iColor4 the two of them together give an equivalent brightness.
The instruction manual is easy to follow and the lights are easy to configure: there are a number of different colour sequences, or you can set them to constant colour (255x255x255 Red/Green/Blue combinations), with fade and strobe effects available as well. You can also join up to 4 units together with one as the Master and the other 3 following the master's program as slaves, though I have not tried this function yet.