This is the best martial arts book I have ever read. Very entertaining and informative. Descriptions, and transitions are thoroughly and thoughtfully laid out with great pictures of the positions. The quality of this book, the shear volume of valuable information, make this edition an absolute steal at the price offered here.
Bravo attributes pot smoking with much of his success at BJJ. I am not convinced, but Kudos to this gappling Genius in any case. If you have any fragile sensibilities then you might be offended by his introduction. If you can look past this then you will love what this information can do to your grappling game.
If you always find yourself getting demolished on your back, or you just can't seem to maintain a solid guard system whilst defending, then you definitely need this book. It is a problem solving manual, that presents many clear and succint tools that work a HIGH PERCENTAGE of the time. I think this point is critical when learning any system, that is, you want the technique to be effective most of the time with most opponents.
Bravo starts off teaching you his half guard defense game, which when you apply his methods, becomes an extremely offensive approach for sweeping, submitting, and transitioning to other positions.
He also covers his butterfly guard, pyramid guard (which I have never seen anywhere else), and also half guard dog fight positions (very wrestling orientated).
Later he walks you through his Rubber Guard game which is just amazing. I have tried his lock down methods and they really work. However it will still take me time and practice to get the techniques really tight and to improve my flexibility. I would say the Rubber Guard techniques may be a bit beyond some peoples anatomy at first (i.e. flexibility plays a big part here). However Bravo does outline some very good stretches to slowly develop this flexibility over time.
I think Bravo's methods are cutting edge and possibly revolutionary. If you do not take the time to learn this stuff now, then you will surely find yourself on the receiving end of it at some stage in the near future. I say get in there now before everyone else, and make it an integral part of your grappling game.