I backed this on Kickstarter and the final product exceeds my expectation. Most of the art inside the book is stunning, the rules are a great adaption of the Thunderscape setting to Pathfinder.

I feel the information provided is not really worth much. The stuff in the Workbooks is more or less just what is already in the rulebook, blown out of proportion for every class and every level. The monster books are just a much too short description of the monster (some would be interesting of they provided more information) ... and then some monster variants created for the author's home campaign? There is not really much information about the monsters in general. I really did not get much out of all those books.