I have the controller with the software.
The keys aren't necessarily the best, but they're not a casio key either.
The controller is built rock solid tough with an alluminum chassis, not a bent on break sheet metal chassis.
Despite the keys not being super high end like the fatar keys/actions that are oem into many brands, they are still very responsive, and the aftertouch is a feature that I've discovered after my purchase with pleases me greatly as I used aftertouch quite a bit on my old keyboard.
My understanding is that if you end up purchasing the V-collection, the automapping will occur by default, ie; adsr will translate automatically. If I'm wong on this, please, someone else speak up.