In about 2017 I bought a new GE dishwasher, it was a MOL I suppose. It did have 2 wash arms, and it took me a while to realize that they did not run at the same time. The noise in the tub changed when the active arm changed from one to the other. I didn't necessarily object, just figured that whatever was controlling this action would be just another point of potential failure/problems over time. It didn't matter as the controls went out after 3 years (it had a touchpad control panel). I put it on the curb and it didn't stay out there 30 minutes until it was gone. It was replaced by the absolute BOL GE model with an analog timer and one switch (heated dry on/off). It was by no means quiet, and lived an easy life as I rarely cook and so it was routinely loaded with cereal bowls, glasses, and coffee mugs. I loved it, and it appears that GE no longer offers that model.
Currently I am using the GE Potscrubber that I gave my parents in 1994 and it works fine. When the time comes to replace it, my plans are to go with the Whirlpool version of the Amana mentioned above. They're basically identical, but the Whirlpool does offer the option of a cool (unheated) dry, which is my preference.
lawrence