At first, the book looks impressive, but when you take a closer look, you will notice two things: 1. The font is quite big. The volume would be way smaller if they had used a normal font. The book is heavy and bulky. 2. I didn't like the structure. Yes, it says which grammar corresponds to a certain HSK level, but I didn't see very detailed grammar explanations. It's not the best book for advanced users. Read more