I have that original from as seen on TV. Got it for xmas last year. Don't have the extra rack accessory so it can't take a whole lot at once, except for the veggies. To compensate, I stand chicken legs on end. I can get 8-10 that way. I'd argue about hte quickness, as it still takes 40 minutes to air fry chicken in mine.
But, so far, burgers have been good. Taters as well, although i still prefer iron skillet taters and onions to any other method.
To do we wings, first my son smokes them, then I finish off in the air fryer to have really crisp. They are excellent that way. A simple wing trick we learned from eating at 17th Street Market in K'Town is to just dust the wings with yellow curry powder afterwards. Simple and excellent.
I do chicken legs the most. They are actually better than on the grill. Season with B&B Texas Trinity (a season-all), then a sprinkling of Yard Bird, Slap Yo Mama, or B&B Sweet Swine. Awesome legs.