I've had Grand Piano Home for a while. They were the only floor standing speakers in the Home line. While I liked them on Jazz and more smaller scale music, I traded them in because of weak, to my ears, midrange. You can find my review on the other AA forum.
Concerto were basically top portion of the Grand Piano, I would get them with a sub for a full range sound or by themselves for a small office system. Definitely amazing finish and a delicate sound. i.e. a proper Sonus Faber.
