I was actually pleasantly surprised by this. I expected yet another post-apocalyptic romp through familiar storylines and seen-it-before cinematography. Instead, I got a visually striking, surprisingly deep and original take on both end-of-the-world scenarios and theology. I really have to give a special mention about the cinematography: it's god damn gorgeous. Nearly every shot is meticulously crafted to display both the loneliness and the danger of the empty wasteland the movie takes place in. The visuals are reason enough to watch the movie, really.
Then, you've got Denzel and Goldman, who are both fantastic in their roles, and who were certainly helped by the really fresh and original story. The writing is a bit uneven, and some sections are a bit overlong, but as a whole it works great.
Basically, while it won't revolutionize anything, this is a gorgeous and really original take on the post-apocalypse genre.
In a sentence:
Amazing cinematography, great acting, a great concept, but a bit uneven with the pacing and writing.