Thompson, our oven takes at least 20 minutes to pre-heat and a lot longer to cook the food than our versatile oven-style (not basket-style) air fryer. We can use either the air fryer or oven settings on it, and for some foods like roasting vegetables, we use the oven setting and then air fry for a few minutes at the end to brown the veges a bit. We're happy with it and almost all of our food is healthy and nutritious, except for some potato or sweet potato fries now and then. :-D