Our Contractor installed Frigidaire appliances when he built the house. When our microwave died, we chose an upgraded Frigidaire microwave. Most of these microwave units look alike regardless of who makes them. Our new unit is more quiet and more useful than the old unit. We are very pleased with the increased functionality, the sensor cooking feature and just how quiet the unit is in operation. We also like the fact that the fan will exhaust the stove now, even though the contractor did not correctly place the hole above the stove through the wall.