@Hilery Our Breville sits on our countertop beneath our cabinets. We use the standard outlet, but I choose not turn on another appliance using that outlet while the Breville is on. We allow a couple of inches at the back away from the wall. It really does not get extremely hot.
Think of it as an oven that is also an air fryer. There is a basket tray used to air fry. It is as simple as putting the food in the basket, inserting it on the designated shelf, and turning the dial to select air fry. Push start.
We use the toast function to toast breads with toppings. It could certainly be for basic toast as well. There are multiple settings for all kinds of tasks. The Bake option is our most used.