I have been using my GE smart oven for little more than one month. So far so good. Baking, Convectional baking and Roasting working great. Love the racks and built in thermometer. 
The oven is so well insulated, it does no give out a heat, which would be great for summer cooking.New smart replaced old GE 27 inch oven and it was a perfect fit, my husband install it himself.Great oven, love the the way it looks also, simple and classic.