Haha, all you lot who think they mixed up horror with horrible are so wrong. They're just imbeciles. It is horrifically bad (the first one at least, I've not seen the others). I mean, most of the girls I know who go to see the films admit that they're rubbish, but only go "because taylor lautner is fit" apparently :P
Still, wouldn't you be scared if your local stalker turned out to be sparkly?
I can't get offended by its' classification as horror, as I found the bit in Kick-Ass where Nicholas Cage gets burned alive to be bad enough...but I do know it's definitely not a horror film.