This air oven is simple and minimalistic in design. The buttons are on the handle, the silver color making them out and easy to find. The button layout (temperature, time, etc.) are put in a way that makes sense. The power and start/stop buttons are on opposite sides, but I think it would make more sense to have them next to each other. The door opens and closes very smoothly. I have only used the air fryer function and noticed it's quite loud. It cooks the food evenly. The racks are heavy duty. They slide in and out smoothly. Overall this an excellent multi-purpose appliance. I would recommend it.