I'd also have to agree that the grammar book is 'lacking'. We used it in 日本語能力試験N2目指す class at my Japanese university and I really didn't like it. Even with the teacher explaining it was difficult to understand, I would say, 50% of the grammar points. Especially the more vague/involved/don't-exist-in-English-grammar structures. Luckily I was using Kanzen Master in my own study time, which as far as I am concerned, is a much better resource.
That said, I own do the 日本語総まとめN2語彙 book. I only actually studied the first chapter of it though. It is quite good - has lots of different words, phrases, idioms etc.
That said, I own do the 日本語総まとめN2語彙 book. I only actually studied the first chapter of it though. It is quite good - has lots of different words, phrases, idioms etc.