Could be a wakeup call for some but I personally didn't learn anything new from this book but I'd recommend it if you have no idea where to start and how to escape. Don't think it will just be a revelation, more of a trigger, something to motivate and inspire you. Spoler: A LOT of hard work ahead!
This book is a nice guide if you are a traveller. But If you are a very family oriented person then it may not be the best book to read, however, you'll still pick up a few good ideas that may come handy.
I'm just starting out so I can't comment on effectiveness but the book reads well and appears to be packed with useful info and workable solutions that you can stick to. I've swapped white carbs for lentils and it's sustainable for me. Not sure about no fruit, but I can see some fruits are packed with natural sugars. Cheat day 1x a week is good idea.
Another 'Do it now' type book. Read lots of these over the years and they all have a similar 'modus operandi' if you read between the lines. This one is slightly different in it's approach, and as a tool to motivate you to get off your backside and DO something, it's got it all there. I like to take snippets of stuff from all of these kind of books and wrap them into my own personal motivational ideas.