This supplement provides an overview of Earth (and Luna) in the 22nd and frankly it's great stuff. In some ways I would suggest that it's possibly a more vital supplement than the excellent Æon Æxpansion. To anyone starting on running Æon I'd certainly recommend picking this up as the first non-core book purchase.
Some of the regional setting material may seem familiar to fans of the first edition game but there is plenty of new and updated material to make this a valuable addition to the line.
If that wasn't enough the sections of weird and mysterious locations could keep a campaign going for months if not years and the new character options are diverse and original. If you need any further convincing - two words "Monster Buddy", it's a new Edge, look it up when you buy the book, you'll thank me for it (and if you are anything like me and my players the plot ideas will start flooding out).
[5 of 5 Stars!]