After 23 months our previous Microwave Combination Oven died for an unusual reason – the control knob broke making it impossible to set cooking times. For ten pounds more than we paid last time we got an almost identical model except in a black finish and with a different control panel. Why buy the same make again? Because it worked well until the knob broke. The identical model was available but cost twenty pounds more than this one which appears to have exactly the same innards and a different control panel.