comparison
I asked my folks - they currently have MOL Frigidaier and Maytag (I wasn't asked for my opinon when they bought them, obviously).
They report the Maytag takes forever, but cleans everything well. It leaves a nasty residue directly under the door on the bottom.
The Frigidaire has been repaired twice under warranty and only cleans well when running at 140°.
Currently the top rack is not being washed at all, it is out of warranty and waiting for me to come over. The dratted ball is probably stuck.
Again.
(Instead of using an intelligent solution to alternate between spraying the upper and lower racks, Frigidaire went with an even stupider solution than usual - a ball in the sump which sometimes closes the upper opening and sometimes doesn't - but always gets stuck in place after a very short time.
So there we have an inhouse comparison, same family, same dishes, same water, same detergent, same use level, same age, same MOL...the Frigidaire is, sadly, not what it should have been, the Maytag is ok - but not more than ok.
US machines suck. Get a pre-Whirlpool Kitchenaid or buy a German or Italian machine.
Period.