When I bought several years ago Kohls had two models on sale. I bought the more expensive model because it had the togurt function which turns out I have never used although I might start using it to proof yeast bread. I only cook for two and we are retired so I like cooking fast. I don't need slow cook that cooks while I'm at work since I don't work. I only ise saute and pressure cook. Got the instant Vortex air fryer six quart which is just big enough for four bone in chicken thighs. Personally I like that my model has a dial to change functions and time. Not sure if my model is made anymore. Small appliances where you push a slightly raised button area drive me nuts, i have to use my knuckle. I like making bone broths and stock which an 8 qt might do better at fitting a turkey carcass. I have to break it up. Frankly, I don't know why there are so many cooking options when almost every recipe only refers to saute and pressure.