I found this book while living in Japan, and it became my prime book for studying Japanese. My Japanese host father used this book just as much to study english--the example sentences and translations are incredibly natural and original. After my year in Japan, I went to the University of Washington and was lucky enough to take a Technical Japanese class with Professor Tsutsui. He was an incredible instructor, and this book reflects that.
This book is arranged like an encylopedia, with two to four pages dedicated to explaining each grammatical structure. Samples include 'sore ni', 'totan', 'zaru o enai', and 'kara to itte'. What is also very useful is the appendix, which includes all sorts of goodies such as compound verbs and particles. Although it all sounds as boring as the word 'grammar' itself, this book really makes it interesting.
I recommend this book for any ambitious student of Japanese at about a 3rd to 4th-year level. Furigana readings are attached to most Kanji, but there is very little romaji. There is also another companion book, which is by the same authors and covers basic Japanese grammer.