This book is a good reference for all the basic voicings of every chord. If you want jazz chords (or any other genre of music) this book won't give it. If you don't have a chord reference book, or are unhappy with the one you have, this is the book you want.
The only drawback I found was I thought I was buying the spiral bound edition (for ease of use). This was not the case. I was under this false impression because there is a review on this book that remarked on the ease of use because of the spiral binding. So, if binding matters to you, you may want to confirm the binding before purchasing.
Caveat Emptor -- The spiral bound though smaller in size, has fewer pages (I would expect more pages to compensate for the size). It might not contain all the chords the regular edition does. Be sure to check this out if it matters to you.