Children of Aten fufills both crucial elements of a good Genesys setting:
It is complete, fully fleshed out, and the various talents/species/gear all work together seamlessly.
Furthermore, it includes useful information and rules which can easily and seamlessly be incorporated in other settings, expanding them.
I strongly suggest purchasing Children of Aten. You will get your money's worth.
[5 of 5 Stars!]