I bought Pianoteq 8 Stage around Thanksgiving on the strength of the recommendations here (and elsewhere), but so far it’s not doing it for me. I love the customizability, though, and the UI is great.
I’m not writing it off yet, and fire it up once in a while to see if anything has changed.
After some wandering, I keep coming back to Keyscape. It’s not the easiest to play (from my D1 controller), you have to kind of adjust your playing to it, but in terms of sound quality I find it bigger and warmer than anything else.