I am not a music artist selling there, and I haven't bought a lot of music on there (not that I buy a lot anyway, usually in-person at a show), but I like Bandcamp a lot. It's like MySpace Music grew up and started a cool record shop.
I wouldn't put a broad CC license on my own music if I made it. Keep your ownership rights.
It is a bit of a dilemma on how to licence my music. It's just a bit of fun for me and I just want others to hear it. I'll keep asking around for advice.