MrMitch, I don't listen to much rock, but I think the CSL will be fine with any music. I will say it is just fabulous with chamber music. I am listening to the new Shostakovich release by the Pacifica Quartet now, as it turns out. I have found that the CSL provides stunning placement of the instruments in space. One can hear the 1st and 2nd violins as clearly separated in space, which is not always a trivial accomplishment. I have also noticed this on the recent Dvorak release by the Vogler Quartet.
I have had my CSL for over a month now, and I could not be happier.
Wylsynet and Mikha, congrats! My guess is I must be getting close to 300 hrs of burn in now. Yes, it gets even better!