I thought it was pretty damn good. Its not the typical gore and expletive fest that most zombie movies (even though the things in the move aren't technically zombies) have. To me, the movie really drew me in and put me in the moment really well. I like the camera work and the music. I think it put a new spin on the genre. I never seen 28 Days Later, but I will now.
"Astronomy offers an aesthetic indulgence not duplicated in any other field. This is not an academic or hypothetical attraction and should require no apologies, for the beauty to be found in the skies has been universally appreciated for unrecorded centuries."