New Book

Just saw this, maybe it's not new and has been out there a while, I don't know. Anybody out there actually get this book? Impressions? Anything new, interesting or useful in it, or is it just a rehash of the same old stuff that we've already known for the last ten years? Especially interested in modding stock harnesses for swapping- I figured it out once, but if there is a more "streamlined" or straightforward way, I may be more interested in dropping the coin. Sounds like it may just be a parts list, but before I pay good money for it (not super expensive, but still...) I want to make sure it isn't something I'll just end up using as toilet paper next week.
Amazon product ASIN 1613257295