I have owned at least 3 other air fryers, but this one is by far the best. It has 2 separate baskets and cooking chambers. You can either use both baskets for the same food, temperature and time, or you can cook 2 different foods at the same time on different temperatures and times.

It has many extra feature buttons such as air broil. Air fry, roast, reheat, dehydrate, and bake. The bottom of each basket has a crisper  plate to air fry. There is also a pause button if you need to stop and check the food. 

I use the air fry method the most and my food always comes out crispy and does not take a lot of time.