The start of the movie was really fun, reconnecting with the characters. When the daughters went back in time to build a band it felt fun and fast like the original movie. And then it went off the tracks with the robot and hell etc, the second half of the movie was as stupid as the second movie.
If you love the original movie, and can tolerate the second movie, then watch this.
If you've never seen Bill and Ted. Go watch the original, this is a worthless movie without the originals.