I read it a couple of years ago when I started getting my financial life in order. His book made a lot of sense to me logically, as far as why people get into debt and how it takes a certain mindset/willpower to get out again.
Liked: His style of writing is very conversational, and also very energetic/motivational. It reads a lot like he's sitting in the room with you, and he's got a no-nonsense sort of outlook.
Disliked: He's got a bit of a religious overtone, which annoyed me a bit. Also didn't like the math.
He argues in favour of paying off your debts smallest to biggest so that you get the constant "wins" of seeing each debt disappear. That's great for some people, but for me I was more motivated by paying off higher interest things first, and seeing more of my payments go towards the principle balance faster. YMMV, of course.
Also strongly disliked/disregarded his post-debt/investment advice. He assumes an 8% return on the stock market for his investment/retirement advice, which seems pretty unlikely (especially given recent years). That said, if all you do with his book is get yourself out of debt, that's a big step that a lot of people don't bother to take, and then you'll be in a much better financial position to invest, whatever strategy you take towards it.
I like reading PF blogs now, as I enjoy reading the more "personal story" side of it rather than the "step-by-step instruction" bit. I also like the conversation/debate side of it that you don't get with just a regular book.
