It really works. It is amazing, but true. I follow the instructions and I remember the words and expressions. I'm through phase 1, and although it's pricey (1 credit for 5 lessons) I plan to continue because i see the results. Even my 10 y.o. wants to learn. I listen in the car, but later at home I do some additional exercises or listen to the German broadcasts. I have learned (apart from English) Russian and French at school, but this method is by far more effective.
I was expecting this to be stories of the authors experiences learning languages and the unique differences found in them. I was expecting anecdotes, amusing stories, and similar. Instead, I got an introductory primer on how to begin studying a new language.
The author's tips were good, but ultimately, they weren't anything that I hadn't heard in the first few classes of Spanish 101. If I were a freshman starting from scratch, this book would have been useful. It makes an excellent primer for someone who has never taken a language class and plans to study on their own. If you have any experience beyond that or are already taking language lessons, I'd pass this one by.