Personally, I think the book gives you a broad insight as to what is going to be covered on the DAT. The one drawback from just reviewing from the book ONLY... you get might get a false sense of what is going to be on the DAT itself.
I mean, sure, there are basic questions about simple systems and mechanisms, but keep in mind that the book isn't there to TEACH you, but just to stimulate your brain to what you SHOULD already know! It isn't as IN DEPTH as you need it to be! Believe me, the questions on the DATs are the type of questions that make you think "HOW MUCH DO I REALLY KNOW?"
If you can, take the class. It is a littel costly, (like $1000!!) , but one of the biggest perks is the Kaplan library itself, where it provides you with exstensive sample tests and questions to get you and your brain ready for the DATs!!
Oh, and another suggestion if you do decide to take the course, use it wisely!! Don't waste your time and money... like how we all did in college at one point!! (wink, wink)
