a popular dishwasher
Sears sold a LOT of these D&M machines. Not a bad dishwasher, in reality. My family had the Modern Maid version of the D&M machines, which my dad bought in 1968.
It had really good scrubability, as far a pots and pans, baked on foods, etc. But, it did have an annoying tendency to leave little nibblets of food, which had been ground up by the "macerator" blade, on the tops of glasses. After the dishwasher went through the dry cycle you had baked on nibblets.
After two years, though, the motor had to be replaced. Then it worked fine up until 1973 when my dad replaced it with a General Electric Potscrubber. I don't recall why it was replaced, probably had rust-through of the tub.
The used house my sister and brother-in-law bought had a similar Roto-Rack, as the one picture above. Oddly, they did not seem to have the nibblet problem. I guess the centrifugal force, from the rotating rack, flung the nibblets off the top of the glassware before they could accumulate. That upper rack could get some speed on it.
The only negative thing they said was the top rack sometimes got out of balance if you had something really heavy on one side of it. It didn't get out of balance as a washing machine tube does, as the rack is locked to a central axis, but it did wobble a little vertically (sides tip up and down). and could make a thumping noise when out of balance.
They didn't have it long, though, as they soon remodeled the kitchen after moving in. They replaced everything with General Electric appliances. Which I thought was interesting, as my brother-in-law worked for Frigidaire, at the time, and could have gotten his employee discount on appliances.