I agree with day or two tops, but the microwave/pan thing I see completely the opposite way. Microwave is ok to heat up eggs, while refrying in a pan you are likely to dry them up and it just can't be the same the 2nd time.
For many microwaves including all of the ones I've used, that only lowers the percentage of time the microwave emits radiation. It helps but it still heats the yolk disproportionately in my experience.