Good start, but then it gets ruined

It is neither dumb nor smart enough to be fun, and spends way too much time with its boring human characters.

I didn’t really have many expectations going into the movie (good or bad), but I actually really enjoyed it. I really liked the characters and the banter between them.

The tone of this movie is interesting -- the stakes are both dramatic and high, but it's balanced with a lot of fun, tongue and cheek dialogue.