This book can help develop slight insight into your lifestyle.
Negatives: The author concentrates too much on avoiding social media. While the reasoning provided is sound, it doesn't help much. For example, there are lot of other things aside internet that vie our attention from what we really need to be doing, like if you are a novel addict or say you read too many magazines, maybe you play video games too often when its not your main goal, etc. The strategies can be extrapolated but it doesn't provide a clear solution.
The author just assumes the reader is an addict to social media and email, and internet in general and most of the strategies provided were basically about limiting the use of internet, but what if you are learning a topic from internet, like online classes or watching youtube tutorials, clearly the author doesn't touch these situations.
The only reason I gave 3 stars is because, if you could actually consider following through what the content in the book meant to inform you, it would give substantially positive results. Also I don't agree to some of the points emphasized in this book. I would say, read this if you have free time but don't go out of your way to make time for this.
Warning: I had trouble understanding the vocabulary, my English is neither good nor bad. The book can be quite boring to sit and read in long hours.