What year?
Back in the early 80's, probably '81 or '82, I replaced the builder model GE dishwasher that came with the house I bought in '79 with a new Kitchenaid Superba I believe. I know it was the fanciest model and TOL that I could get. It had the second spray arm under the glasses on top, but had no sprayer on the very top, which I thought odd when I noticed that. Sure enough, I had little specks of food and such on the tops of glasses and tall things in the top rack. I really hated that dishwasher, especially after paying so much for it with the thought that it would be the very best dishwasher I could have possibly gotten at the time. It would pause for the water heat on the water temp. boost continually, so if you were in a hurry you couldn't use that option at all. I remember being very disappointed with it and after about a year or so bought a Maytag TOL machine with the reversing racks and the rapid advance timer, all push button like the Kitchenaid was. That machine was one of the very best machines I ever owned, only to be topped by a Maytag built TOL Jennaire machine I replaced it with in the '90s because it was an open box special at Circuit City and was too cheap to pass up. That machine washed even better than my Maytag and was easier to fit in odd shaped items as well. It held more dishes and pots and pans than any dishwasher I have EVER owned and cleaned everything sparkling clean every time. Oddly enough, it was one that had the tower shower in the middle. But even so, the dishes, glasses and everything came clean every time. I gave my old Maytag to a friend who used it until they re did the house and replaced all the appliances. I have a Kenmore Elite in the house I am in now, I think it is made by Whirlpool. It does a good job too, but not nearly as easy to load and fit odd shaped pieces like an electric frying pan in, without swallowing up a lot of room in the machine. That Jennaire was incredible about that. Anyway, I really had a bad time with the one new Kitchenaid I had back then, never did like it. Little did I know that a 2 or 3 hour wash time would be common one day! LOL