If we look at the video for what it is supposed to be, it does the job very well.
Another reviewer complained about the narration, but the content of the narration is actually informative. Although the narrator is uncredited, I am sure that is none other than Bill Goodwin, who later was the first announcer for the legendary George Burns and Gracie Allen TV Show. Admittedly, he was supposed to be annoying on that show as well (usually hawking Carnation condensed milk or B.F. Goodrich tires).