I use it for two years.
I was looking for an original and more "spectacular" to play my synths live. You can assign each record to an external module. Launch drums or samples, etc. ... in short everything that makes the south.
The accordion sounds internal counterparts, can even hear the sound of buttons. MIDI allows control what we want. No risk of feedback. We can train with headphones without disturbing the neighbors or the rest of the family.
I recommend it to all accordionists who want to bring a "plus" Electronic their live performances.