I love washing machines and dishwashers with unique wash mechanisms--even if they sometimes lead to quirks in performance or practicality.
The problem I'd have with this revolving spray arm type of wash action is there would always be a battle royale when loading the top rack.
Most pots, pans, casserole dishes, mixing bowls, Pyrex measuring cups, glassware and coffee cups would be top rack material. And since the upper rack doesn't have the overhead clearance of the lower rack, items like deep pots for cooking pasta or soup wouldn't fit.
I suppose you could put muffin tins in the lower rack, and shallow frying pans and casseroles could probably work as long as they were oriented correctly.
Still, a cool machine. It was probably quieter than, say, a Kitchen Aid or Hotpoint, as well.