I have to be honest, I use it for almost everything. I bought Sampletekk's Black Grand (close) and Vertikal Jazz. I also have the factory Kontakt2 Pianos.
I prefer Logic's piano to those.
I am interested in Gallaxy 2 and Virtual Grand II, but I'm not sure it's worth the money. I know this is highly subjective, but what are your opinions of Logic 8's "Steinway Grand Piano"? Does anyone know where the samples come from?
BTW, my primary use is for jazz and pop genres.