So just to jump in with 1/2 cent...
In the past few months I have read:
OSA-good, bit dark but not bad
Lights Out-personally, I liked it better than OSA, not as dark, liked the characters more I guess
Going Home-great, can't wait for sequel
Patriots: Surviving the Coming Collapse-good, bit more religious than my liking but this is what I fear the most (at least the causation of a SHTF event)
Patriot Dawn-ok, very geared toward ground tactics (has a lot of detailed description of terrain as battles are unfolding and my mind doesn't visualize it well, so I start skimming, looking for the good stuff)
Enemies Foreign and Domestic-Good (skimmed the first few pages of the sequel, probably won't go there)
THanks for all the leads!!
edit:
BTW, here's a good source: http://www.goodreads.com/shelf/show/shtf