Just 3 days back ia happen to see the demo by the samsung representative for their product microwave oven. it was pathetic. He called and came without any information and just unpack the product and done nothing but told the lady available at the home that go through the manual and you will come to know everything automatically. Now they are using the product with trial and error method. If this the really way of giving the demo then there is no use of such demo rather I say no use of such product.