I live in Tokyo and a friend of mine who recently visited brought this as her only guide book. As a stand alone guidebook, she would have been completely and totally lost without me, my Tokyo City Atlas, and my explicit step by step instructions on how to get to places without me. If you're traveling on your own or without a friend here to play guide, this book is not enough - it doesn't give you webaddresses, metro/train station stops, or the names of certain places written in Japanese so you can ask people for help.
Having said all that, as a complementary guide, this book was FANTASTIC. Every place that we went to in the book looked as good as they were pictured. Every food recommendation was truly amazing and never a waste of time. Although it does have recommendations for all around the city, I would say that it is pretty Omotesando/Minami-Aoyama centric.
I am planning to buy the new edition coming out next year for myself. This is a great book for anyone who lives in Tokyo and wants to find restaurants, museums, and temples that are perhaps off the beaten path, but on the modern architecture and interior settings path. This book generally makes no recommendations that you would see in the typical guide book (e.g. Asakusa, Shinjuku Tochomae, Kamakura day-trip), but that's fine, because if you're coming here by yourself, you will need a Lonely Planet or Frommer's anyway and those books will provide you with more comprehensive travel info.
Particular food faves in this edition: a great, Kyoto-style food izakaya across from Aoyama Gakuin, and Beige, Alain Ducasse's restaurant in the Chanel bldg in Ginza (you can get an amazing lunch set there starting at 6000 yen - a great combo of top-rate French food with impeccable Japanese service, something you can't experience in France. Definitely worth the splurge.).