Microwave function is just fine, but the convection function is not. I set the temperature to 375 for example but three different oven thermometers show the temperature reaching only around 330. I had a service call placed to have this problem fixed and it was decided to replace three parts. It took about 3 months for the parts to arrive and another week to get the install scheduled. Once the parts were installed the heating element/fan unit made a very loud scraping noise so the old unit was put back in and the tech left. Still doesn't work right.