It was Ok pretty much sums it up. I liked the narration and the ability of the reader to sound like different people. 
 I like reading books like this where the end of the world type scenario plays out and the author examines human nature and the different things that happen to society when life as we know it is interuppted (either by zombies, natural disaster or whatever). In this case the USA suffers an EMP attack which renders all electronic devices useless - no power, no communication, no cars with computers inside etc. The threat of EMP is not something I was familiar with and it was interesting to think about how reliant we are on technology and how quickly things would crumble without basic power and transport. In those aspects - the disintegration of society, the impact of marshal law, the difficulties of feeding and medicating your loved ones etc - this book was quite good. 
 Why not a higher rating? 
 Seriously over patriotic cliched speeches by most characters, a fairly unrealistic viewpoint that only those who are exmilitary or who possess firearms will survive (seriously almost EVERYONE in this book was ex army, ex marine, a cop, a wife of a cop/ranger/soldier, all the older men were vets etc... and paired with the NUMEROUS 'but we are america!' type statements almost made me want to vomit). They turn the local bible type college into the local militia, arming every kid with a seemingly neverending supply of firearms.... 
 The female characters are fairly insipid - e.g the female mayor hands over control over her town to the men who know better (and blushes when the subject of sanitary products is bought up....seriously?). There is lots of mushy sentimentality and lots of scenes where it is just the towns 'ruling council' having a long conversation about all the bad things that will happen in the future (rather than just showing it later). 
 It is a great premise but I felt it was let down by the authors agenda and some of the stylistic choices of the writing. I listened to the audiobook and somehow missed the last hour. I didnt d/l it again because I didnt really care how it ended.