Pros...it is a breakdown of every muscle in the body and how to correctly needle it. The benefits of knowing a quick and efficient system to mediate pain and to illicit the healing process is indispensable in a busy practice. The book has a clear and concise picture for each muscle showing the motor point, adjacent acu points and surrounding muscles. The book also helps as a refresher course in anatomy, just in case you had forgotten a certain muscle or it's origin, insertion or action. This book should be part of every acupuncturists library, no matter what style he/she uses. It will makes you so much more confident in your handling of any muscle pain situation, and will make you look like pro to your patients as well.
cons...wish the book was a bit less expensive, as I have the electronic version. The electronic version is limited by the inability to quickly move about the book to different body sections, as it would for with a physical copy book. But it does save on weight.