Ehh... it was ok. It pretty much told you to pace yourself and how to weed out the wrong answers if you were not sure. It wouldn't be a complete waste of money. I'm glad I at least read it, but it's not the only book you will need.
I did order the flashcards. I really do like them. The only downside is they are made out of pretty wimpy cardstock. I have a small laminator so I laminated them. They are 40 bucks, but I had Amazon points so got them for free.