Koryo oven is good. every product are good or bad is depend there use.like we use every time oven to boil water, boil a cup of tea, is not good some time we use just like burn roti, chapati, cooked vegetable, cooked non veg etc.i also purcchase koryo oven in2010 and in 2017 oven is very well. so plssss use the evry product systmaticly thank u??
