I enjoyed Mack and Mabel -- but, the script was weak -- the music was good and I really liked the tap number in the 2nd Act -- the Keystone Cops "ballet" was disappointing. How come Chaplin was left out of the script? If you want true enjoyment -- look at this Chaplin-Norman film.
https://www.youtube.com/watch?v=hZjvEUm29Z0