Sexual Anchors: Does it work?

It has now been about half a year, and I left myself a note to follow up with my "test group" who I lent "Sexual Anchors" to.

Initially, they had some very positive reviews, but I was curious as to the long term results.  

I was very pleasantly surprised to hear that the sex has continued to get better since that time.

As you may recall, at the one month mark, 1/3 hadn't read the book - however she has since read it based upon the reviews of the other 2/3, so I shall add her review as well (though hers is a month behind the others)

Reviewer 1:
"My reaction to the book was that of mild amusement and, to be honest, I didn't fully expect the techniques within to work.  However, after the first half month, I began noticing a distinct difference in my partner.  By the end of the month, the sex was, to put it bluntly, better than it had been since the honeymoon.  We have been together 15 years, and... wowzers!"

"Since that time, I was under the impression that there was nowhere to go but down (again) but I was wrong.  Since my focus has been towards improving my partner, I then shifted the focus to myself as well, as the book says it can "positively brainwash" both you and your partner -- so I put the techniques to work upon myself as well... and that's when things really took off."

"I can safely say this book has made me a much, much, MUCH happier person."

Reviewer 2:
"The sex gets better, but, as they say in the book, the techniques aren't limited to just the physical - the INTIMACY got better, the cuddling got better... hell, we even share the household chores better!!!  This book didn't just make me orgasm more frequently... it saved our marriage!"

Reviewer 3:
"I was super skeptical of this book.  I didn't even open it until I heard my two friends tell me how positive the results for them had been.  My partner has always been... reserved, sexually, and I've always wanted to be more... unreserved."

"I honestly didn't think I'd ever get the sex I wanted, as we were just from two different worlds.  I'd grown accustomed to our infrequent, and unstimulating romps, and I was 'fine' with it."

"While I wouldn't go as far to say that this book revolutionized our sex... I would say that its improved it dramatically.  There's still a long way to go before I would call my lover a dynamo in the sack... but for the first time in our relationship, I see a positive option for the future."