When Mark Bittman applauds the microwave, I feel better about my cooking habits. He’s right about vegetables - the microwave is the best way to do a lot of things. With a big covered container, the microwave does great corn on the cob. Beside vegetables, I use the microwave for making small quantities of pasta. It’s not much faster, but the bowl goes into the dishwasher and not the sink. And I always keep a few microwaved potatoes in the fridge - they’re great for making hash browns or using as a thickener in soups. And I frequently microwave a chicken before throwing it on the grill - it cuts the grilling time by a lot and reduces the risk of burning the chicken.
A “smart microwave” (with humidity sensors) is even better. If you let the sensors do the work, they’ll get the timing better than you will. Fresh or frozen vegetables will be done to perfection.
But the best microwaves are hybrid microwaves and convection ovens. In convection mode, they’re great for any small batch baking or roasting. I’m still playing with the hybrid mode of using low power microwaves and convection roasting at the same time. This makes for a great roast chicken, but there are lots of other things I want to try.
All in all, I think modern microwaves rival pressure cookers for the title of most helpful kitchen appliance.