I purchased these books for the wiring harness locations that I assumed were in all factory manuals. I was wrong and wasted my money. There seems to be a lack of good component locations in general with these books. My Alldata system has most all of this other information. It is a good price for a hundred dollars for factory information, so it is still good for someone who needs most of the basics and doesn't want to pay for a database system. I'm sure they will eventually come in handy.
This book is fantastic. Although new, it would be extremely expensive, I was able to get it for a very reasonable price. I am thrilled. I study it like the Bible for hours and hours on end. It has all of the detail, that chiltons and Haynes books lack. I am very happy with this book.