I've had my Ninja double oven for around six months and still absolutely love it!! I'm able to make a meal at the same time using this oven. The top and bottom ovens can be on different temperatures and settings but both still cook together. I really like that whatever I'm cooking in one of the ovens, doesn't make the food in the opposite oven taste like the other item! I love that this can be used as an oven, air fryer, dehydrator, roaster, etc. I use this oven almost daily, especially now with these extreme temperatures my area has been having, as it's just too hot to turn my regular stovetop oven on. Overall I love everything about this oven and it's one of my favorite kitchen gadgets!