I have been getting some questions on this book in my GMAT Experience
. So I thought I share my views on the book.
The book assumes that you have attained a certain level of expertise in Quant. It even has a few initial problems (tough ones) at the beginning to assess this for you.
The book is not a collection of "secrets" or "super shortcut formulas". It deals ENTIRELY in "How to tackle problems that you are having trouble proceeding with". So if you havent practiced Quant well, this book cant help you. You cannot move to this book after finishing your MGMAT Strategy guides. The correct order is MGMAT Strategy Guides, OG, 2-3 CATs and then MGMAT Advanced Quant.
The first half of the book deals with strategies. They are divided into two types - "Advanced strategies" and "Guessing tactics". Advanced strategies are "Advanced" not "tough" and are very helpful in problem solving. Guessing tactics have some logic in them and are accompanied by their "certainity". These strategies dont just help in tough problems, they make easy problems shorter and quicker to solve.
In the second half of the book, there are lessons like "Visual solutions". A well practiced student might have already learned such procedures in his mind while solving problems in OG. These lessons make sure that the student uses these procedures more effectively. They can be both time saving and helpful for tougher problems.
At the end, the book has 15 sets of ten problems each. If you solve one set a day setting time limit for 15 days before your GMAT test appointment, your "Tougher part" of the GMAT exam will tend to be a little more "used to". So, you can go with a fresh mind for verbal
In the questions from other forum users, I have sensed a feeling of "If I solve this book, I can solve tougher problems that GMAT gives me and end up with higher score on the GMAT". This is true only if you have enough practice.