It's not my favorie genre, but it's not all bad. I hate shit that's more rap than it is metal (ex: Limp Bizkit), but I love stuff like Slipknot (new stuff isn't really nu-metal though), Korn, Mudvayne (though new stuff is more hard rock/alt. metal), and Disturbed. I still prefer death/thrash/prog to nu-metal, though Slipknot is my favorite band. Most nu-metal is pretty aggressive actually.