Mr Grue
Chris over at the Lybrary site has a couple of the early reviews up,
but if you want to read what -
Drew McAdam
Richard Webster
Lior Manor
Jon Stetson
Bill Cushman
Nick Morton
Greg Arce
Sean Waters
thought of the book, I suggest you visit my main site
http://www.magiccoach.com
To answer your query, the main point of the book isn't about the memory techniques themselves. It's about the routine. How to get the most bang for your buck. Though to be complete, I did teach a few techniques and I have been very pleased with the number of people who have been motivated by the book to get down and do the work.