The pretty negative review is based on the fact that the book is made of 95% trapping drills which are very very difficult to follow.The rest 5% is actually quite interesting as it covers fighting tactics against different opponents types (boxers, grapplers, karatekas, etc....) but the pages dedicated to that are the extreme minority.The book should have just been called: Advanced trapping exercises.Good if you are a trapping fan, but wasted time if you are much more "street oriented".Disappointed.