User Manual Chefman RJ38-2LM TurboFry 2 Liter Air Fryer

The tray goes in first with fries on top.

I do not know falafel. I have never cooked or eaten it, sorry. Food without coatings I spray with a butter based cooking spray and have not had any problems with sticking.

Yes. You can fry anything you normally would. Just be aware this is a small oven. Maybe will hold 5-6 wings or abt 3 whole wings. Makes crispy chicken w/out using a lot of oil.

It makes a bell sound when the timer completed. I don't believe you can prevent this and I would not want to since it tells me that it is done cooking.

I believe you would need something on the bottom underneath the cookies if you were to attempt. So the cookies don’t fall through the grates

It kind of clicks like an old school egg timer.

You can check on the food, but the timer continues. That's not a big deal, because it will not take long to check on the food, just keep it in a little longer.

No need to pre-heat. Just set the temperature you want and start cooking!