We purchased the large version of the air fryer and are very satisfied overall.  Examples - potatoes wedges came out perfect, chicken very moist, meats cooked thoroughly.  On the not so good side - Cooking hamburgers created a serious amount of S moke, much like you would get from a BBQ. And the cook times on the recipes need to be adjusted significantly based on thickness of the meats. A temperature probe would be a terrific addition.