It was pretty good except for two things:
a) The voice acting wasn't very good. They're getting attacked by robots and there wasn't much sense of urgency and desperation in their voices.
b) The ending. I presume it will make more sense as we learn who all these characters are, but as of right now I didn't like how it ended. It was like, "let's fight this robot" and then "PEACE OUT" *cuts train link*. It made no sense to me.