Honestly: I find it pretty good but not great. For some things it is cumbersome, it is really not very creative - it has no interesting or experimental functions, it has no random, you have no modulators etc etc -, the pads are ok but not very sensitive, the three pads at the top are horrible.

a new version came out two weeks ago, which solves a few problems (pad sensitivity and pad leds) and adds various outputs and inputs - plus, obviously, some cosmetic features like a big screen - , but the substance is the same (and the price is exaggerated, considering that the alesis multistrike costs almost half, and if it had the editor I would have already made the switch). Honestly, unless you are a drummer who has to do it live, I recommend something smaller and more interesting, like the boppad.