I bought the book. 45 bucks where I live.
I didnt want to do a write up on it because I was dissappointed but for a stupid reason. the book only covered the X-guard.
I have Eddie Bravo's MTRG and I love it. I never use Rubber guard and I dont plan to use it in the future but some of the RG stuff was helpful and the book helped me with my halfguard game, knee position game, butterfly game and submission game, It even helped my closed guard. Not to mention it explained the RG so well I actually learned it's limitations hence I have an idea how to approach passing the guard of a good RG player. Bravo is so good at explaining concepts that even though he throws out a bunch of moves, they still work on the same principles.
The X-Guard didnt really work that way. It just showed a lot options to your opponents reactions, but I don't think it explained principles as well. Maybe because the X-guard isn't as complicated as the rubber guard, or maybe I am spoiled.
Pros.
Interesting history of Garcia's life.
Detailed grip breaking strategy. (the best part of the book IMO)
Victory Belt level illustration (multiple angles, clear photos, tons of detail, etc.)
Well marked chapters.
Several entries into the X-guard from many different positions.
Tons of details on X-guard sweeps, especially with the gi
Very good explanation for no gi attacks and differences between their no gi counterparts.
Cons.
I felt the submissions were kind of limited. The ones shown were ones I already knew.
Redundant. In my opinion the book spent a lot of pages re-explaining no-gi techniques. I would say the book could have been 15 to 20 percent shorter. At least filled with different aspects.
I don't think it rounded out my game at all. Like I mentioned before MTRG had something for everyone. Half guard/Butterfly/and subs. This book is just butterfly and X-guard. Again, that should be obvious because of the title, but I'm stupid.
Overall.
the book is good, but not for me. I prefer books that flesh out an entire strategy, and the book felt like it focused on one very minute position. A lot of the sweeps leave you in a "scramble" like position, so it would have been nice if they did more to explain the follow ups into mount, side, etc. Also an extended basic closed guard section to butterfly/X-guard would have been nice since you pretty much end up at closed guard once you reset. But the book isn't called "The complete game" it is called "The X-guard" and that is what you get. I think the book would have been MUCH better if it had a small section on passing the X-guard.
If you love the X-guard you need this book for reference. If you like the butterfly guard and are considering dabbling in the X-guard, than definitely consider picking it up. If you love picking up instructionals in general, than it's nice to have. If you only pick up instructionals occasionally and aren't sure if you want to work the X-guard into your game, than I would recommend waiting to buy it.