I am on my second unit in less then six months.  Both units have had different problems.  But I am over it.  The first unit the microwave quit heating after 2 weeks of having it.  It took Frigidaire 3 months to replace and now the replacement unit, I am unable to run the microwave and the oven at the same time.  The entire unit shuts down throws an error code and I have to reset the breaker.