I have a GE Advantium oven-and very pleased with it-it works as a microwave,halogen oven or both together.Yes,it needs a 220-240V line to run-Use mine everyday like my Vitamix!It gets LOTS of use as a microwave,and speed oven-and it makes a good stovetop vent exhaust blower too-has the blower built it to the machine.The exhaust works when its a speed oven or microwave.Als-if mine dies-can't find a similar machine to replace it.was bought in 2000.