We purchased the oven only a few weeks ago.  But in that time it has almost made our old conventional oven obsolete.  We have made shrimp & potatoes on Air Roast and the potatoes were crispy and the shrimp just right.  My wife just baked a cake in in it last night and it was so light and fluffy it was amazing.  Plus the ability to flip up after using really helps us maximize our counter real estate.