I had one then when I renewed went for a self cleaning one, wish I had stayed with the previous model and paid a bit more. So easy to clean, just put it on the setting required, depending how dirty the oven is and then shut the door and forget about it. Takes about 2/3 hours and you cannot open the door because it is so hot. When finished all you get is a load of ash at the bottom. The self cleaning ones are useless in comparison. Both models I have had have been Neff.