This book, sadly, isn't very good. The best part of it is the list of rotes (many of which are out of date and need work to use for modern editions) along with the sphere handouts (similar), but the rest is at best pointless and at worst absurd. Two noteworthy examples: In the write-up of the Seattle setting the Chantry under "Pike's [sic] Place Market" has access to 20 points of Quintessence a Day via 4 nodes, causing them to average being 35 point Nodes, which must be among the most powerful on the planet, but they're not discussed as being of global importance. Another bit is "The archetypal Nephandus is a woman" which, while yes it is then mentioned to be "more to do with the witch-harlot stereotype than with real membership or power" it was a bizarre thing to encounter.
In general, this book consists of cut material from Mage 2e, and it's very, very clear why most of it was cut.
[2 of 5 Stars!]