I use it for a month. The effect is similar to the "Raptor" from Martin but much brighter and more responsive. This is a good device that is controllable in 6 or 8-channel (depending on the selected mode). It can work with the music, but in this mode for speed control, I still groping ...
Beautiful colors, beautiful gobos, it is the Martin.
The unit weighs 15 kg and consumes 220W.
The only Hic is the price. Takes about € 700.
By putting 4 with a DMX program, the effect is great !!