I saw this movie at midnight, and again yesterday at 4:30pm. I have to say that I liked it. I read the books, but have friends who hadn't that also saw the movie. They said they still liked it and found the movie understandable.
I thought that the book was a real challenge to adapt to the screen, as most of it is unspoken feelings. But they did a fair job, and I'd still recommend it. Just don't expect the exact book.