My brother (into synth, composing, and production, not necessarily into piano) bought the whole 8 collection this summer (on an offer), and now upgraded to 9 for free.
He likes the Piano V for purposes in a mix, but recognizes it is not a superb solo instrument.
I have tried Piano V myself (this spring, I guess) and was positively surprised at first and almost thought I was going to buy it. Liked the sounds better than pianoteq, much easier to use, and it was quite playable. Don't remember the quality of the pedaling behavior. By the way (as I've read somewhere) Arturia uses some of Modartt's code/engine in the Piano V.
But as things go, a second try the next day made me rather less euphoric and on a third day the demo got uninstalled.
So, perhaps this is the impression you're after 🙂.
Cheers and happy GAS attenuation,