Saw this and didn't know what to expect. What started out as a half-way decent vampire flick degenerated into a very stupid one. The main hero did something near the end of the movie that made absolutely no sense whatsoever, especially as it occurred near the end of the 30 days. They waited that long, they could have kept going.
It was strongly reminiscent of the original "Night of the Living Dead". So much so that it almost seemed cookie-cutter in its approach. Also, the vampires weren't terribly threatening. They just seemed to wander around and howl a bit, and occasionally feast. It seemed like you could overwhelm them rather easily.
Another thing, every so often the main character would say that everyone had to move from their hiding place. Why? Their hiding place wasn't discovered. Wouldn't they be discovered more easily by all that moving around? And also, early on in the movie, they announced that they would sleep in shifts. By the end of the month, they seemed to stay up all the time.
In another scene, an ultra-violet lamp was used to great effect until the vampires cut the power. This is Alaska. You would think that they would have an extra generator or two up there.
I like vampire films from "Nosferatu" to Lugosi "Dracula" to Lee "Dracula" to Coppola "Dracula", but this one was unfortunately stupid.