I've been a cook for more-than 50 years, and this oven is my all-time favorite!! It's amazing! My first experience with it was cooking a 12 Lb. turkey, which I convection roasted, It came out perfect! 
I purchased the air-fry tray and have cooked wings in it twice, so far. 
Love the Broiler. It works great as well.
Very pleased with my purchase!