I'll give 4 stars because few of the things in this novel gets repeated with other novels authored by Dale like How to win friends and influence people, The leader in you, etc.
Coming to the content of the book, it's very palatable and easy to read and understand. This is like a practical handbook! Most of the incidents mentioned are the real one and helped Dale in his personal life.
After reading this book your life and job won't be changed from monotonous, boring movie into thrilling, entertaining masala movie...but this novel will definitely help you to change your perspective and teach you few life-saving hacks to enjoy your life and job!