Instruct: Classify a given Amazon review as either positive or negative.
Query: Few insights here

Given the author's credentials and extensive research, I really believed I'd get some insights into the secret handshake. As an executive coach, I keep up on developments. The major insight I got here was how far some people will go to play the game. That was in the anecdote of the woman who practiced lowering her voice to sound more executive-like. Other than that, not much new for me and a major disappointment of my expectation.