I bought this product for rather nice design and frankly, I would have done better to take one more ugly but effective ... if you like to cook double or even triple time all you do in the oven so take the otherwise secure another one! In addition, as already said elsewhere I think, no way to reduce the cooking time once you turned the knob! I really regret my purchase knowing that I already had a small oven in the past much better than this but can not remember the brand!