I'm a Pianoteq user and I have to say version 3 is a vast improvement over 2. It now sounds “in my opinion” hyper realistic. Version 2 was good but it had a slightly synthetic bottom end and soft mid tones, where version 3 has all the feel of a real piano from top to bottom.
Well, for one thing, it seems on the Pianoteq, (from that screenshot, at least) that unison detuning is a global parameter, whereas on the V-Piano it is per note (if you want).
I read on another forum that there will be a Pro version of Pianoteq 3 released that will do that. No dates set though.
Regards.
James.