I find inverter microwaves are much better at reheating - you can set it to say 30% power which lets the heat conduct through the food better whereas older microwaves would blast at full power 30% of the time resulting in the usual inconsistent heating where one part is overcooked and the other part cold.

Of course lower power means it takes longer, but its still much more convenient to put something in a microwave vs getting a pot out.