It sounds fantastic. I probably listen to music 90% of the time. If I'm home and awake, the tunes are playing. This is the most non fatiguing system I've ever had; I can literally listen to it all day and have to tear myself away from it.
I picked up a Parasound A21 a while ago and between that and the 2100 and the Sierra towers with the Raals, I'm in 2 channel heaven.
Don't you have a Parasound amp also?