We love our Ninja dual air fryer. There's only 2 of us and its adequate but think you'd struggle if a family. It does a 1.8 kg chicken beautifully but nothing bigger. My DH is cooking a nandos style one right now. Fajitas are fab too. Also breaded fish, frozen chips, broccoli, asparagus are excellent although ive never managed to make a good jacket potato in it. We hardly use our oven now. Had it since early this year. Use most days.