I like what is within this book content wise. The cover art is a great example of stepping outside the art offered to us by WW. The theme overall is fun and its nice to see others stepping into this realm and adding their own thoughts.
I will say the book greatly needs to be given a solid run through for editting purposes such as instances of "System:" not being bolded when necessary or odd breaks in descriptions for the rituals. One other thing that stands out is the pages are bordered with white on top and bottom of each page which really breaks up the flow of the book.
The price being a pay what you want is a large redeemer for some but its not something that I typically discount when rating content. (Even with these mistakes I'd pay probably up to $5 if the book is well done).
[4 of 5 Stars!]