The book put a bad taste in my mouth from the beginning with it's crudeness, and as I continued to read, I ultimately had to conclude that I don't care for Michael Pearl's coarse and sometimes condescending writing style. Perhaps others would enjoy it, though.
The book also had many good things to say, but nothing that hasn't been said before or better by others.
The main unique element was the concept of the three types of men and women. I am not completely sure what to make of such narrow categories, but the author does point out there is, and should be, a lot of overlap, so I think the simplification can be helpful.
Ultimately, however, I'm not sure this is a book I can recommend, based on some ideas that are flat out wrong, such as the idea that you are incomplete, and that your life can't really begin until you are married. Embracing such an idea I believe can lead to a lot of harm, and I also think Jesus and Paul would disagree.
All considered, while this book does have some merit, it didn't answer any questions for me, and I found it often more discouraging than encouraging at times. Of course, I've found just about every book I've read relating to marriage to be rather discouraging, except for ones written by the Ludy's.