I wasn't expecting much, so it pretty much lived up to my expectations. I basically read it because it happened to be handy and because it's received so much hype. 
 There was an extreme lack of world-building. The whole idea that the whole world was destroyed besides the States is ridiculous. I mean, honestly? I'm rather inclined to believe that in the case of big emergencies, that the States wouldn't last, but that Europe would. In general, her whole reason for there being no contact with the outside world at all was unbelievable. 
 The characters weren't really round, I mean, I liked Jenna and Rhine was okay, and even Cecily had her good aspects... Linden was dull. Vaughn was creepy, but I really wish we knew more about the basement, and Gabriel also needed a bit more rounding. 
 The whole virus thing seems a bit wacked. I mean, at the ages of twenty and twenty-five? Exactly? It would make more sense if it was roughly around those ages, but not set in stone. An actual disease isn't so specific. It should have been more random. 
 Also, Rhine's escape came across as a little too easy. 
 That being said, the book wasn't horrible. It had good aspects and I read the thing from cover to cover because I was at least a bit curious. I think the idea of the polygamous marriages was interesting and if the world had been better built, I would have been able to overlook the other things that irked me.