I have had a number of toaster ovens and air fryers… this thing lights up (with quartz/infrared elements) like no other.
4 slices of bread… 2 minutes 'till toast (evenly). Frozen fries that ask for 15 minutes are done perfectly in 7 (crispy outside and tender on the inside). Same with tots and hash browns, frozen battered fish, and just about anything I want from a toaster.
Additionally, you can bake (but only for up to 25 minutes) from 250-500°F.
Literally no preheating… it comes up to temp almost instantaneously. My only issue might be that you may need to keep an eye on it as it gets so hot, so fast, some recipes need to be adjusted for it.