I have read it. There is some good advice in there. I would say list the best five ideas you find in the book, and attempt to apply them to your climbing, and you won't mind having bought and read it.
Personally, I found the North American, self-help style of writing grated after a while, like a "Be All You Can Be" infomercial. I had to push my irritation with this style to the back of my mind to finish the book, but I did finish it. If you want to reflect on your climbing, or on yourself, this book tries to offer a methodology, and points to emotional pitfalls which impede optimum living and climbing.
The main source of his inspiration seems to be the mystical 1960s-70s writer of (fake) anthropology, Carlos Castenada, author of the "Don Juan" books. See
http://en.wikipedia.org/wiki/Carlos_Castaneda . While I read some of this stuff as an adolescent, in the 1970s, all I remember are the drug-induced vision quests. Don't try that on a big wall climb.
If I was going to put pen to paper, I would start from a different warrior tradition, that which attempts to combine the Japanese martial arts traditions with Zen Buddhism, of which there are enough examples around. Browse the martial arts section at a few bookstores in town, and cross-apply the ideas.
But if you say to yourself, well, that is just how he has decided to package some good information, focus on the ideas behind the window-dressing, but don't take the style (the key words, stages, labels, diagrams, and expressions) as the real message, it is a good enough read.