The DeLonghi Livenza has to be the easiest and most versatile air fryer on the market, with so many different cooking options!  So far I have only used it to cook a frozen pizza (the back side is rounded so a small frozen pizza actually fits!), some toast and some garlic roasted brussel sprouts!  The air fryer comes with accessories for all of its features (pizza tray, basket, crumb tray, baking tray).  It also looks very high-end.  

In my opinion the unit is rather large (12"H x 19"W x 17.5"D) so it will take up some real estate on your counter tops.  I do highly recommend it if you have the right home to place it!