This is definately THE drumsynth you want to have. The soundquality is very high and it has lots of ways to control the sounds. Some facts:

Virtual analog sound synthesis
31 sounds kits with over 700 sounds included
24 percussion sounds per set, spread over two octaves.

Emulation of THE synth monster from back in the days, the almighty PPG WAVE. It's basically a synth with digital (wavetable) oscillators and analogue filters. Watch out, there's even a red version of this which makes use of the Waldorf AFB16, an analogue filterbank which works like a plugin per USB.