Just finished it this week. Like almost any post-apocalyptic story, it's one you never want to end (that's the impetus behind The Walking Dead), as there really is no "end" in a world like this. No happily ever after, no resume to normal life, etc. This world is now how everything happens.
I guess my only other issue with Daybreak was the ending (haha). Not quite sure what happened, and the fact that there is almost no dialogue for the final dozen pages or so really makes you rely on your interpretation of the art. It's safe to say that
the one armed guy turns into a zombie, but does the protagonist turn as well? I'm assuming he (or even she) does, as all the zombies in the final pages are seen as walking away from the protagonist rather than towards him in an attack