We use this product almost exclusively over our full sized oven.  You have to adjust your times and temperatures and honestly, we're still learning, but it's so fast.  When I want to warm up some left over pizza, I know it'll be hot and ready within 5 minutes starting the second that I flip the oven down.  It also keeps the room temperature down since the heat it puts off is minimal.

We bought this product, we did not receive it for free.  After buying this and using it so much, we've now bought 2 air fryers (including the new dualzone which we have used plenty already) and the normal grill (not the new XL).  My first introduction to Ninja/Shark products was a vacuum I bought a few years ago.  Great vacuum and still has as much suction power as when I first bought it, it seems.  My mother said she thought it was better than her Dyson.  My next product was a Ninja blender, which was also fantastic.

Great products and great quality.