The Volca Drum is a pretty amazing little percussion synth. The dual layering on each sound bank is fascinating to play around with, and I have only barely begun to comprehend the depth and possibilities of the sequencer. I would say Korg stepped it up several notches with this thing. The only downside I see with the Volca series in general is that the knobs feel too small to me at times. But the sound quality of this device is superb.