Disclaimer: I am a long time fan of Role Play Public Radio and backed this project on kickstarter.
At nearly five hundred pages this long this is a mammoth of a book which has been excellently converted into PDF format. The firdst couple of chapters are are world descriptive fluff pieces but they are of an excellent quality and showcase the range and depth of the world that is avvailable for you to create and change as your player groups needs it. This is further exemplified in the character generation and enclave (your hometown) generation where you get to build the whole community an have the players populate it with wild characters who survived the apocalypse.
The rules themselves are very straightfowrad with dice roles primarily happening on the players side, with the results informing the GM on how to structure the narrative. From there with the buy system for rolls it is very easy to up the ante and make for some dire situations for the players. It also has something for those who wish to roleplay with negotiations between the player and GM for jobs being a driving point and plenty of opportunities for in character interaction.
I ver highly advise this system for anyone who wants a good time.