We had a Sears DW like the one in reply #25 when I was growing up. No idea how well it worked...I can only remember it being used ONCE. I have no idea all the whys and wherefores. It was left behind in our house by the previous occupant. I know my mother had a belief that dishwashers broke dishes, and I have a feeling that one might have broken something when she tried it out. Plus she might have felt it wasn't worth running after each meal for a small family, or worth the hassle rolling back and forth. Whatever. It wasn't used except for that one time, which was to wash a huge pile of "better than daily but not fine china" dishes before relatives came for a visit. But during the visit, it was back to hand washing.
The manual for that dishwasher was lying around, and it seems to me there were 4 profiled. That one was one step down from the Lady Kenmore. I can't remember if the next step down was the one featured in this thread, or if it even was one with a Roto Rack. The BOL certainly had a conventional rack.