As a cricketer and fitness nut I was initially skeptical at the simplicity of some of the books suggestions. There are no hard training workouts or principles of power and speed to adhere to.
However, If my experience in the nets is anything to go by then this book can make a difference to sports performance. I can safely say that I have been playing with more confidence and skill since I read this book and employed the techniques.
The book is about relearning the basics of movement and as a result is more about simple tasks that help your central nervous system become more aware.
To use a language analogy, you might be getting by with a couple of hundred words in a foreign language, but to become fluent you have to learn so much more.
Yes, you will need an open mind to make it work but from my experience I can only say good things so far.