It has been a while since I read this book so view my commentary with a jaded eye, but I found myself in a lot of disagreement with the author, but I will say that if you want to learn methods of sex without orgasm, this book will probably get you there, but you may feel that you are undergoing basic military training doing so.
In my mind the purpose of sex beyond reproduction (which is an essential but rarely used option) is to maintain a loving relationship for the couple. Sex serves the relationship. The relationship does not serve sex. Somewhere in the book the author indicates that if your partner is not willing to give up orgasms then you should get a new partner!
That killed it for me.
The author almost gets hysterical about orgasms to the point that it started to grate on my nerves. I finished the book but I can't say that I personally agree with much of her claims.
I believe that orgasms are good for both women and men, and I also believe that there is a good bit of biochemical communication going on down there that would not be fully developed without orgasm by both partners. Admittedly that is an anecdotal observation on my part, but that is my belief.
I also feel that she swept the issue of prostate health under the rug. I don't remember her specific argument about it, but it was unsatisfactory to me.
Again the biggest problem I had with the book was this abandonment of your partner because they don't adhere to her program! Good God you have to be out of your mind! My wife is the love of my life. We have 34 years of orgasmic marriage (plus a couple of years of hanky panky prior). I sure as hell am not going to part with my wife over orgasms!
I think it was in this book, there was a comparison of the thoughts of man and woman about a dinner and the evening after. The woman writes this long dissertation claiming her partner was quiet and detached at dinner, he would only watch the game on TV, he said nothing to her on way home, he was cold to her during sex, etc etc etc and her final belief was that he was having an affair and was going to leave her. His description was something to the effect "The Lakers lost, got laid though! Best part of the book.
EDIT: it is this book, you can read it on page 108 in the Google preview, search Lakers in the preview.