It's a little idiosyncratically written, even more so than the other Nobilis work for this edition, but given that it's free, that's forgivable. If you are a player or GM for the new version of Nobilis, this book is a must-have. I didn't understand Treasure very well, and the insights from this book finally caused the light to go on in my head. In addition, there's some general information about the theory behind Nobilis, mechanics-wise, that's completely worth it.

I would have willingly paid money for this book. Given that it's free, it's almost literally a steal.