It's mediocre. The gist is simple and overly used: a controlling father gets to learn to accept people for who they are but it's practically the only thing they build the franchise on since it's pretty much the growth that already been written around for the first movie. Four movies in and there's no depth to any other characters, that's just lazy.
I know Ted Bundy, and this is a really nice movie which makes me excited. Christian Bale's acts were fantastic that made me feel what he thought exactly.