It started off promisingly, surprisingly understated. The problem is that it stuck with that pace for the 50 minutes. Then I just got really bored when everyone started dying as quickly and moronically as possible.
It was nice that they had all the stereotypes available but chose not to use them. Although it probably just seemed they decided not to use them because they didn't bother with character development. The exception was the token black guy, but what do I care about darkies.
My final criticism is virus-infected, running zombies are a retarded concept.