We got our IP on sale on Amazon and love it! It's fast and easy yet so much more versatile than a plain pressure cooker. My DH makes boiled eggs and cheesecake to die for in our IP, as well as rice, potatoes and soups and stews. All that on top of using it for regular meals and meats.
It might be a little slower, but I don't think it would be by much. I have a regular pressure cooker also, and have not used it since getting the IP.
No infor here on the air fryer, tho they do seem interesting.