Just get it 3 days ago. You have to get used to the menu system, but after that true MIRACLE.
Great addition to my Prophet 6 and my Kurzweil.
Cons :
1 FILTER Polisix filter great for traditional pads, while MS 20 makes alive complex digital wavetables.
2. SUB: The sub is practically a 3rd oscillator, I used triangle at the same octave, to give punch.
3. MOD matrix: My favourite to use note number to modulate speed of lfo's so lower notes modulate slower then higher, best natural chorus.
4. CHAOSS PAD: Still learning, but great to get somewhere unexpected!
5. EFFECTS: Great, love the cathedral reverb.
6. The instrument is BEAUTIFUL, and QUALITY excellent, all knobs react smoothly, keys great synth action.
Neutral:
For my jazz setups 3 octave fine, for pads, leads, bass.
For Bach, I'd need a midi key with 4 octave.
Cons:
The more I dig into the modwave the more I think I'd need the wavestate too ;-)