The ease of operation far exceeded our expectations.  We really are pleased with the very overly large microwave and the two-level baking with the option of placing one food on the glass tray and another on the wire rack.  The microwave sensor programs are an added feature and the fact that one can keep foods warm by selecting most or crisp is outstanding.  We also like the convection bake and roast and broil in the bottom large oven.  All in all, we are extremely pleased with our purchase.  The units are an attractive addition to our kitchen.