I've watched many movies/documentaries on Bundy, and in all honesty, this isn't one of the best ones. I do not agree with most of the reviews on rotten tomatoes or imdb, it's not a bad film per se. The first half of the film was gripping and brilliant, Chad has played the role of a psychopath really well. The second half of the movie is unfortunately very, very slow. Scenes that were made to build up the tension drag on and on and the ultimate blow is not as impactful as intended to be.
All in all, you can watch it once if you're really interested in Bundy and want to familiarise yourself with all the movies that are made on him. Otherwise, the movie with zac efron or my personal favourite- Ted Bundy: Falling for a Killer, are better adaptations.