I was drawn to this novel not only because of my love of TEOTWAWKI novels and conspiracy theories, but I know folks like Sky Metzger. The only problem I had with this novel was the style of formatting chosen for Sky's chapters, and it is one of those nit-picky things that most folks probably wouldn't even register, but those chapters were all in bold.
This could have been done on purpose to help the reader see a POV change, but I hate that and it speaks of lack of the author's talent. Melby does not need to rely on such a poor tactic. There is a clear difference in voice between Sky and his brother.
Putting this on 'to buy' list and I recommend that you go grab the sample and check it out for yourself.