If you need a controller for the V collection, you're probably better of with an Arturia keylab essential controller. They have lots of specific knobs and slders set up for control of instruments from the V collection series.
Having said that, it is very easy to set up the Keystep Pro to control V collections synths. All V collection synths have a MIDI learn function. Setting them up with the Keystep Pro is easy.
Still, I think it's a good idea if Arturia would include some freebees or time-limited V collection synth demos with it.