The only real faults with State of Decay seem to be the province of the publishers, whose cover design obscures both the fact that this is very much the first in a series and that three of the four viewpoint characters are female.

Otherwise, Knapp creates a believable future filled with interesting and well rounded characters, and with a snowballing plot that brings all of the protagonists together in a satisfying and logical way. I'll be looking for the sequel, especially if it continues the good work begun here.