We bought a new GE Spacemaker Oven (model JVM1440) when we moved into our new house in 2007. It was installed by dealer as it has a vent to outside. Before the first year was up the magnetron quit working and had to be replaced. The new one only lasted 1½ years and last week (April 2010) the second magnetron quit and we had to call GE for a repair. This time they replaced the magnetron under warranty but charged us $190. for labor to install it. We are now in three years on our third magnetron. We will never buy another GE microwave oven and will probably not pay the labor again to replace a magnetron on this unit. I had rather pay a little more and get another, hopefully more reliable brand. I would not recommend that anyone buy a GE Spacemaker Microwave oven. Read the other reviews and you will see that what we have experienced is not an exception, but rather, typical for this microwave oven.