Pretty good product. Starting a d20 Modern "Mad Max" style campaign, and this is just what I needed. Can't beat the price, especially considering what the printed copies go for.
This book covers a variety of post-apocalyptic scenarios, so on the face not all of it would apply to what I needed. The actuality is that I was able to pull something useful from every section of the book.
Writing is solid, rules seem reasonably balanced, and art is better than one gets sometimes in these things.