I wasn't able to see the video due to erroneous Youtube ad-block warnings. May be able to fix in near future.
Based on evidence from Kodak transparency films shot on my older brother's Argus C-3 (EDIT: The C3 is the black, boxy one in the collection pictured in the film) in the 1960's, the lens was useable, but lacked the resolution to take full advantage of such slow, fine-grain films like Kodachrome X. Resolution was also not quite up to possibilities of the grainier High Speed Ekatchrome (160 speed) but as a competitor to simple box cameras, it had the advantage of adjustable settings for focus, aperture, and shutter speed. Widely promoted in the USA as a good camera to "learn the basics" until the Japanese innovators (Canon, Minolta, Olympus, etc) offered their smaller, nicer-looking fixed-lens handy cameras in the mid-1960's, as I recall.