SPOILERS
It was good. I am disappointed on a lot of things that we couldn't know more about or character's being saved, but overall it was good. I think a lot of nuance will be lost on casual fans such as that quick scene when they all learned they are Ai's and not their real selfs. I am also still confused how Caine lived and what did he toss out of himself? A lot of unexplained things that will require watching videos from SUPER fans. That isn't the best way to tell a story if people don't get it. But overall, I really enjoyed the series. It started rocky, but it got good.
This answered some of my questions about the blue and red ai's.
VideoOverall I thoroughly loved the series and I am sad it's over. But sometimes it's better to end on a high note.