Good setup. Made me think of the beginning of "Braindead" (Dead-Alive) from Peter Jackson. It also has some great, odd, close-up camera shots which were great.
What follows in Infested, however, is a avalanche of constant group yelling scenes of a bunch of people who make really bad decisions. Again!
Why do movie writers keep creating stupid characters just to give them a tool to hurdle over major plot holes? Stop doing that! Create characters which the viewer can relate to and create a better story.
I feel though, that this is a promising director, due to the special shots and atmosphere he created. I hope he will do a better job with the next "Evil Dead" movie.