The first reviewer gave you lots of detail... so read his review first.
I am rating this 5 stars because it is - in my opinion- the best in a string line of Fate Worlds of Adventure. It plays to Fate's strengths by allowing PCs to do things in line with their godly abilities that would be hard to model with more mechanistic games such as Pathfinder or GURPS, and also by making what the PCs do - and fail to do - effect the game world in broad, narrative ways.
However, I would also say that this game adds several levels of complexity unto Fate Accelerated that may be a bit complicated for a first time Fate player of GM to grasp. However, compared to many other RPGs a complex FAE build is still pretty crunch light!
To Summarize - 5 Stars, perfect fit between Fate's strengths and setting's focus, a bit more complex than most FAE builds.
[5 of 5 Stars!]