I had a chefman air fryer. The 10qt one and it has 5 positions for the shelves, came with two racks. It is really great for cooking a few things at the same time that you want basted in fat.

I cook sausages on the top rack then fries underneath, the fat drips on the fries and makes them tastier.

I was pretty lazy with it and some fat got into the electronics and it started smoking. I’m now going to buy the 12 qt version.