Had this oven since August-plenty of space and power-if you have a built-in shelf on a wall like I have, be prepared to deal with the heavy duty power cord-there was no room to plug it in directly due to insufficient space between back of oven and wall plug-maybe one inch-could buy an oven with less depth but I am tired of ovens that don't take larger dishes so I'll live with it-a swivel outlet adaptor might help and/or drill a hole in the shelf(without my wife knowing it).