I'm not sure this item does any better than a standard oven. The food tray is quite small - and we are only two people. It wouldn't do for a family. I find I always need to leave it on for much longer than the directions say in order to fully cook food. I have wondered if my model gets as hot as it's supposed to?
I haven't tried other brands to know how this compares, but after a few uses I this hasn't had much action given it's less stress to just turn on the oven, and not much difference in food quality.
Included manual is extremely basic.

Euro Chef Air Fryer is our first experiment with such a product having always fried our chips and food.

We have been able to fry chicken nugget, Calamari rings and french fries etc. without any issues within 10 minutes, therefore, it delivers food fast and without oil.

I would recommend this product for any household with a low to the medium requirement of frying as this is not suitable when organizing large parties due to the 3 L volume.