At some point they were more HipHop than actual Hiphop artists, but shyt got bad after Em dissed them, Fred started sucking up to all sorts of pop bytches, and then after their guitar player left, it was a wrap.
I'm not gonna lie, they had some really decent joints - Nookie, Break Stuff, My Generation, etc...however rap-punk rock era was quickly over and only Linkin Park managed to stay afloat with that style and only because their singer and Shinoda are actually good at what they do.