I love Kirill's music, I bought the limited edition CD and have quite a few of his tracks on my tiny ipod nano (2gb) and have some of his tracks on my favorite playlist that I limit to 50 tracks.

The only thing is I hope they make the music match the levels a bit more. Like in the beginning of ACT 2 I wish there was ambiance or music that makes you feel alone or whatever. That was the only point I turned the music off so I could just hear the wind blow and that part of them game became much more immersive.