I've had this setup for about the past 2.5 years:
Q10c center (duh!)
JBL PB10 sub
These are not iQ. The finish is cherry. I love them. The room is a big challenge, but they sound great for music and HT. I'm sure they would sound even better if proper placement were possible. As it is, the soundstage is incredible - it wraps around the side walls almost to the back wall.
The JBL is fine for HT, and I don't listen to much music w/ a .1 channel, but it sounds good when I do.
In fact, I've been focussing on upgrading my basement 2ch system for the past year or so. Although it has better components, the speakers (rebuilt vintage 1981 EPI 100Vs) are still too harsh and forward. When I go upstairs and put in the same music, I'm pleasantly surprised how good it sounds w/ the KEFs. I guess as I age, I'm preferring a more "relaxed" sound than the bright, ultra-detailed sound I preferred in my youth.