Today I cooked some frozen fish in my microwave, also rice and reheated a container of vegetable curry.
The advantage of the microwave is that i can put the item to be heated in it, set the timer and walk away and do something else, secure in theknowledge that it will not burn dry in my absence. I can also reheat drinks in the mug and heat soup and other similar foodstuffs in the bowl they will be eaten out of, in a fraction of the time it would take to heat them any other way and with less washing up.
On the day we have heard such alarming news about global warming, its biggest advantage, as with the sir-fryer, is that it uses less energy than would be consumed by more traditional cooking methods.