I've got an AFE spiral bound one and it's fine. It stays open at the selected page, it's softback so it doesn't hurt too much when it hits you which comes in very useful with my landings
and I like having details of all the airfields I could possibly divert to.
I don't think the AFE guide is an official aviation document, so it's probably best to double-check the information with an official source before relying on it.