I read this book when I got back into the dating scene 2 years ago after a 15 year absence. While I don't agree with everything he says, (I never agree 100% with what anyone says) I did find it quite useful. A lot of what Corey says is very similar to what Tony Robbins says about relationships.
I think the main reason I couldn't agree with many things is because of our different backgrounds. Its a lot different dating when children are involved. I have children and most women I date have children.
Also, as much as I liked the book, it seemed like there was a lot of filler material to make the book longer. Like the hot tub story, I didn't see the point of that.
But there were definitely some golden nuggets of information and was worth it for me.