I bought a Cuisinart air fryer, toaster/ oven. I got it because what I really need a second oven, but there's no way that's possible for me. The one I got was a good deal it. I bought it because a good friend adores hers and uses it all the time.
What I have found is that it does all the things it says it will do but not as well as frying or using the oven/broiler. The thing about it is that it does everything fast. It comes to temp in no time, and doesn't heat up your house like an oven does.
I can see it being a very useful tool for someone who has to put a meal on the table but doesn't have time nor the desire to cook. I use it, but I wish I had spent my money on something else.