Helen, that Good Housekeeping video comparing the devices is interesting. (I let it keep going and also got tips on loading the dishwasher - I do it correctly - and on deep fryers - I have a little funky old one to make occasional falafel.) I cook with pans and oil, and because of the keto aspects of the diet, the oil is actually an important part of a recipe. So using one of these to avoid oil would be counter-productive. But I can see why they're so popular.

Thanks!