Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Nothing new, but a personal perspective.

I found the book to be interesting enough; but it did not contain any new news. The author shares his experiences and insights in a very down-to-earth manner. Some may find it useful as the more one is exposed to an idea, the greater the likelihood of being able to understand and adopt it. I wouldn't consider the book as a "magic potion", but more like "help along the way".