hi,
since I've started this thread based on the demos I've seen from Roland, think is only fair to post my opinion after playing the V piano on couple of occasions, for a long time, and having it compared side by side with some accoustic pianos from Kawai and Yamaha.
1. It is the best electric piano I've ever played, congrats to Roland for putting this together, is an outstanding instrument.
2. Action is very very good, in a different class than the G or 700 series
3. Soundwise, as I said, it is marevelous for an electric piano, if supported by the right equipment. Couldn't ask for much more of it.
4. There is no copmarison in my opinion between the V and an acoustic grand, even baby grand.
5. All the tuning of the hammer action and the like is ok, but as a pianist, don't think there will be many people really taking advantage of that... just my opinion
So that's about it for the instrument, however, there is a small issue with the price

The V piano retails here for about 7000$. A superb Kawai concert piano starts at about 11000$.
Now the V is an electric insturment, hugely expensive, and its value will decrease the moment one buys it - this is a fact. Actually, Roland might very well issue upgraded versions in the next years, decreasing its value even more.
The Kawai that retails at 11,000 keeps its value for at least 10 years, with full price refund for future upgrades - that means one doesn't lose any money on the unit.
Bottom line, although is an extraordinary instrument, financially don't think it makes sense to "get" the V. Of course there is a market for it, but will just have to see how many people actualy buy it.
If it was priced at 4000$ it would be a different story
congrats to all who own it, it is a beautiful instrument