My friends and I had a debate about Silvestrov some time ago. For me, his music is inoffensive and pleasant, but he doesn't seem to have anything to say. No exploration of human struggle like Beethoven, no sadness and melancholy like Chopin and Schubert, no exploration of beauty and counterpoint like Bach, no sardonic irony like Prokofiev, no sensuality like Debussy. It's just ... nice. My friend pointed out that Brian Eno's Music for Airports is also "nice", so why can't music be like that?
He has a point, I suppose!