This is exactly what I was hoping for with Gimple in charge. Quiet stories of madness and desperation, with horrible things happening for a reason, rather than just lurching out of the darkness.
It all goes a bit off the rails as it steamrolls towards an action-packed conclusion involving more Nazi killing, a race against time, an impending nuclear strike, and some weird pseudo-science and occult madness.
I also found it refreshing that in a zombie film landscape that thrives on an atheistic nihilism, [REC] 3: Genesis expands on the idea of the previous films that the zombies are a demonic infestation.
I've been known to complain about the lack of good science fiction cinema these days, but I suppose there's rarely been a time when there were consistently good sci-fi films filling the theaters.
I mean, how could you not like a film that hilariously plays on the traditional "I love you, man" dying moments and then goes on to close out the film with an animated montage of Juan killing zombies while Sid Vicious' "My Way" plays to the final credits?