Finally finished the series. Seems like they rushed the last few episodes. Ended ok. Still left questions unanswered. Overall I'd rate it a B-.
One thing that pissed me off about the show was it was another one of these episodes where the "good guys" continually get shit on, their families are killed, their friends are killed, they are starved, jailed, and tortured. They get threatened with being wiped out, and they continually puss out at every juncture. No one gets pissed off and says fuck you and starts shooting people in the face. I found myself yelling at the TV to just kill the fucking badguys already. In that aspect, it was completely unsatisfying.
By contrast, the show the Walking Dead. Rick gets shit on at first, has enough, then when he sees a threat, he fucking shoots it in the face and drives on.