I enjoyed listening to the Vigilance Press podcast of Beacon City so I bought the book & pdf so I could see the character stats.
I like the book. The artwork is well done and the physical book is nice. The quality of the physical book surprised me a little. I am used to smaller publishers delivering 'cheap' books. Not this one!
The characters are very well thought out and they all come with a good background story. I really like the relationship diagram in the beginning. It shows you how they feel about each other. A big help when the GM is using them in the story.
As a bonus, you get the Hero Lab files for the characters. (I love Hero Lab. It is a great product too). I only wish that the Hero Lab files were completely filled out. (The Personal tab has the artwork but the rest of it is at defaults. Not a big issue, just wish it was complete. I am a little picky about my players filling out all fields on all of the tabs.)
In all, this is a great addition to any Mutants and Masterminds collection, especially if your game has any kind of a mystic vibe.