This was good, but the last episodes that tried to close out the story got tedious. They could have cut about 5-7 episodes in the middle, where they saved people to get to the end and told the history of what brought them to where they were.
I liked the storyline but got bored of it towards the end, and I ended up fast-forwarding because I really didn't care about the tiny, insignificant details that led up to what they were trying to get to.