I finished Twilight last week after staying up way too late one night to do so. I never could decide if I really wanted to read this series, but then one of my new co-workers gave it too much praise for me to abstain any longer. It was a really fun and engrossing story. I'd say if you liked Buffy, you'll probably like this and recognize a storyline or two. Although Twilight is more of a love story (with a lot of teen angst) than anything else. I'm counting it in the "Romance" category for the Adult Summer Reading program at the library.
I hope New Moon gets into the stories of the vampires and the werewolves more than this one did.