Can't comment on the PDF of this book yet (used to own the hardcopy but it vanished), but, for content, this book is great. If you like having shadows in the game at all, this can only add to your game. New Thorns, tips on playing shadows, all kinds of great stuff. I can see how the white-on-black PDF would be unfavorable, of course, but based solely on content, I gotta go 4/5 at least.
[4 of 5 Stars!]