I read the series mainly because a friend of mine at the time would talk about them all the time. I took a book and read it in a few days, then didn't read another until right before the last one cam out. I was at his house a bit during the summer and he couldn't stop talking about different part, just talking of snippets with his girlfriend. So I took the book and when the his twins weren't using me as a jungle gym read them. The books aren't that bad, yes they were targeted to a certain genre, but others liked them as well.
And it is fine with the vampires sparkling, as long as the zombies all have cognitive thinking scientist to further their cause and ride unicorns.