The dishwasher really is outstanding, thanks for the comments. Yes, it DOES have the revolving arm at the top of the tub, but as you know these are NOT the best dishwashers as far as cleaning goes. I tried each cycle while I was working in the house and it worked perfectly, but Jet you are right--its NOISY!. And Yes, Gansky, I had a much earlier version that I installed in my house but finally gave up on it as it was just about useless as a dishwasher. The total cycle was just about 11 minutes long, and tho it washed clean, it could not handle any type of food being left on the dishes. It just made a big mess leaving deposits on all the dishes. I suspect that this dishwasher was improved and worked better, but how much better would be a guess. Im still not sure what Im doing with all this stuff Im getting, but I just could not let it go to the trash!