Summary: I am now on my third oven KEBS279BSS in a year. Kitchen Aid has admitted back in April 2013 that there was a problem with the electronics and they expected a fix once it got out of litigation. They have provided new electronic boards and new ovens and it still does not work. Easy test - put lower oven on at 200 degrees. Once it has preheated, then change temperature to 350 degrees. The oven will never reach the new preheated temperature.
Summary: This double oven is everything I could wish for in ovens. And they are simple to operate, the controls work very logically, the ovens do everything they are supposed to do! Wish I hadn't waited so long to get them.