On one hand I would have liked more setup to the finale. On the other hand I'm glad that Kirkman didn't milk this series into oblivion... Like he did with Invincible, Kirkman quit while he was ahead.
I actually liked the finale issue itself for the most part, though.
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"I am tired of Earth. These people.
I am tired of being caught in the tangle of their lives."
I don't like how it was ignored that roamers would still be "easily accessible", even in that far more civilized "rebirth of humanity" time... I mean, regardless of what caused your death, you're still turning into one of them...
So no reason for Glenn Junior to get so crazy about them, imho.
He had no idea where to take the story, so he ended it in the laziest way possible, and then he teases a potential mini-series for the title's most popular character.