DoubleStack 10 QT XL SL400/401/451

We have this model. Can confirm it cooks unevenly. You can counteract it if you’re mindful to turn the food through the cooking process, but it can be a pain

It's not the best. Definite differences in heat levels between the front and back of the drawers so you have to move things round more than you ah pull. Zero preheat time though and it's got a small footprint for so much capacity.

Ninja Foodi, 2470W power, wide drawer, not tall shelves, so airflow hits food directly. faster and crisps much better than oven style.

This model of ninja is inherently flawed as an airfyer and the heating element is at the back. Reviews show it can lead to uneven cooking. If you have the space opt for the side-by-side ninja dual basket one, it goes up to 240C as well.

Go with the Ninja. Ninja makes consistently good quality that lasts years

Same. I have this model and cannot think of a single criticism of it.

I’ve had no problems with it. You go have to shake the basket or rotate larger items but that’s true of air fryers in general.

I’m usually not an ‘on trend brand’ person but… I have a lot of Ninja ‘never stick pans’ - and they don’t. A Dual Stack Airfryer - it’s great! Easy to clean too. A Ninja multi blender/processor - so much better than anything similar I’ve owned before. I recommend Ninja, yes, there’s hype, but in my experience they do live up to it!

I have the 9L double draw Ninja. It is great for two and a bit depending on the meal. Doing enough chips for 4+ needs both baskets and a lot of returning to shake them around. The result is pretty limited if you overload. Use it multiple times a week and it doesn't get taken off the bench. Any smaller and the baskets don't fit roasts etc, honestly still struggle to get larger cuts in. Having two zones is great and basically the only real advantage over a traditional oven. I can cook multiple things at once at different temps with different times and they all finish at once with the touch of a button.