I found the parenting "tips" to be common knowledge, and some of them I outright disagreed with because the book as a whole seems to approach teenagers self-absorption as a fact of life that should just be accepted as normal. You have to get about half way through the book until the authors really bring up the fact that, hey, by the way, you may actually nee to discipline your teen if he/she is that disrespectful. The main vibe of this book to me is, "Here's what teens are like, so just, mostly let them be that way and they should grow out of it." I didn't find it very interesting or helpful and I don't think that the parenting tactics that are described here are going to be useful at all if you truly have a strong-willed or rebellious teen.
Basically, if you are curious about young teens and want to read a lot of their quotes, then here's a book for you. If you want to know how to improve teens behavior, communication, cooperation, or help guide them to have a worldview that stretches a bit farther than their own personal drama, then this book isn't for you. A biblically solid resource I do recommend Lou Priolo's books, "The Heart of Anger" (written toward parents for helping your kids get to the root of how they deal with things that hurt or upset them) or "Getting a Grip: The Heart of Anger Handbook for Teens". For more insight into parenting that isn't based on the Bible (I'm not downplaying this or being judgmental, just providing an alternative resource that I also found very helpful since not everyone would want/need a Christian resource), I would recommend Cynthia Tobias's "You Can't Make Me, but I Can be Persuaded" or "How to Talk so Your Kids will Listen and Listen so Your Kids will Talk" by Adele Faber and Elaine Mazlish instead.
For the purpose of full disclosure: I received a copy of this book for free from Tyndale House Publishers for the purpose of review. I wasn't required to write a positive review, the opinions are mine.