The trick is to bring in whatever busted piece you have and find the exact match. Nobody’s gonna think you’re shoplifting rusted garbage and usually you can knock out your purchase in just one trip.
If your project/fix is too complicated to bring in the busted piece, may God have mercy on your soul.
“If two men or two women can form a household based on an equal separation of responsibilities and reliance on one another, how am I gonna convince my wife God wants her to do the dishes while I drink beer and yell?”
Some have sensors that will really help heat food evenly and will adjust times and power levels depending on what you’re doing. Most are just default cook times, but if you haven’t tried it out, it’s worth it.