I love everything about the oven except one thing. I can hear the relay switch clicking on and off every 15 to 30 seconds even after it's preheated. the clicking can be heard from the adjoining family room even over the television. Since I couldn't be sure a different brand would not do the same thing based on some reviews I read, I decided it was a lot of trouble to return it. I will never like the clicking.  I don't understand a modern product that has a clicking relay switch when older models were silent. GE has a "disclaimer" in their instruction book stating that this is normal.