You're drastically underestimating the most convenient feature of a microwave: repeatability. Once you know how long something needs to be cooked and at what l

You're drastically underestimating the most convenient feature of a microwave: repeatability. Once you know how long something needs to be cooked and at what level - say, a mug of your favorite soup - you can just throw it in, put in your usual settings, and have something that's ready to eat when it dings[1]. A few seconds either way can be the difference between "needs more time" and "oh dear god my mouth is on fire." There's a reason one of the first "smart" features microwaves added was customizable presets. 1. This is, incidentally, how microwaves are used in restaurants too. Nobody's guessing.