Huh
No D&M fans here, I see. ;-)
I saw this machine, badged as a something-else, at the Phoenix yard years ago, before they ran their remaining dishwashers through the chipper-shredder. I loved the analog countdown timer. Very sleek.
The wash system (tower, with the mid-level wash arm stuck up top) worked great for me; this was one of my favorite systems (on my Montgomery Ward unit) before somebody bade my dishwasher to die ;-) (ahem). The Magic Chef I had, which was similar but with no tower, was a royal pain to load; it might as well have been a single-wash-arm machine.
With this design, I really liked having the long arm up top, because a D&M machine is a master particle-depositer, and you need something to blast the gritties out of the concave surfaces of anything up top. It was a typical D&M; with the help of seventy-two water changes, it leveraged serial dilution to accomplish the seemingly impossible.
I didn't have issues with washability in the top-rack corners; I hold no engineering degrees, nor do I pre-rinse a thing. I do think about things like where the water's originating from, though, and thus don't do things like face bowls to the tank wall.
D&M had an absolute panoply of bottom-rack designs, and I agree with Greg that this was their second-stupidest. The first prize belongs to a variant of this style where the saucer rack above the tower RAN FRONT TO BACK along the whole rack, thus sub-dividing all of your lateral space completely and effectively giving you the world's first 18-inch 24-inch machine in terms of capacity. Friends of ours had a Caloric used mostly to store potato-chips (probably for the best), and it was mint inside. They offered it to us when they moved, and we politely declined.
D&M's all-time achievement toward the end was digital controls (don't get me started on the soil separator); I've not had the pleasure(?) of using one of those machines, but I'm guessing--based on current electronic reliability trends with more credible manufacturers--that there's a reason why there are not many around to play with.