According to Roland website, the left and right keyboards are velocity sensitive but I did not see anything about after-touch though.
These digital accordions have approximately 30 accordion voices and about the same number of orchestral voices.
![](http://www.synthzone.com/ubbs/icons/icon2.gif)
They do not have styles or auto accompaniment built in.
Most of the midi/digital accordion players that I see or know, use sound modules like Ketron, Solton, Orla, etc. to get all of the voices and the rhythm/styles that they need.
Thats more dollars to spend, unless you plan on hooking up to your existing keyboard.