Very good resource
I teach for a different Krav Maga organisation so read this with some interest.

I have to say, most of my own students have this and use it. A good buy, well illustrated and a gtreat effort by Mr Levine et al. If you cant get to an instructor, this is a great start.

mediocre at best, dangerous at worst
This is just another text in the continuing propaganda machine for this brand of "Krav Maga" (which is a generic term in Israeli CQB, not really a system), commercialized by self promoted experts, with little or non battlefield experience.

A lot of the information in this book is wrong on so many levels, specially disarms and defenses. The reader should be advised to do some research into real close quarter battle, specially the professional; do not trust your life to the effectiveness of these techniques.

More credible are systems such as American Combatives, Kapap (see Kapap Academy), even judo mized with combatives, as well as Professor Koga's Aikido for the Street. Do not trust your life to this stuff!

This Book is a Supplement!
This book is a great supplement to the actual training. As I think anyone who seriously studies a fighting discipline knows, you will never learn it from a book. That said, if you are training in Krav, this book offers a great review and breakdown of each item in the curriculum.

Full Disclosure: I train at Krav Maga SF. Photographed demonstrating in this book is Gabe Khorramian, one of our head instructors. I have taken many classes from him and he, along with the other authors, are well qualified and legit. We keep a couple of copies of this book lying around as a handy reference, but that is about it. Its a great resource for someone training for a belt test to refresh their memory. Just don't expect to read it and join the IDF.

Very Good Book!!!!!!!!!
Well written!!! All this stuff works... I been learning Krav Maga for years and this is a great way to start!!!!

A poor example of a great fighting system
As a police officer and former Marine, I know your life may depend on your CQC skills and this book does not do Krav Maga justice. This book is a poor overreach at explaining what I have seen to be an extremely effective fighting system. From sport ground fighting (not street combat), ineffective combative movements, to sloppy weapons defenses this is a poor rendition of Krav Maga training. A few examples of the bad techniques:
On pages 41-42, the other cover hand is left down, exposing your face and prohibiting a second strike with it. On page 126, this defense will not work if someone pulls back with force--which is likely. A simple turn and counterstrike will work against any type of rear pulling attack. On page 248, without stepping off the line of attack, this defense can get you stabbed.
On page 250, this defense does not move to the deadside and will get you killed as the attacker falls back from your punches and retains control of the handgun. The handgun is designed for him to hold--not you. If he falls to the ground you are in danger. To preform the defense properly you must move to the deadside while delivering strong, simultaneous counterattacks while controling the barrel.
On page 253, again, this defense does not move to the deadside and will get you killed as the attacker falls back from your punches and retains control of the handgun.
If you know Krav Maga, you'll know this book has too many mistakes to be an effective guide to anything, much less Krav Maga.