Recently I bought Domex Toilet Cleaner. My bathroom have some tough yellowish stains and I read on the bottle of this product that it is specially designed for stubborn stains. When I used it I was really waiting for the magical results as shown on the packet of the product but I was really disappointed. It is not even of the level of the normal acid which I had used earlier. It made the tiles of my bathroom look more uglier by making them of two shades. On the particular area where I made trail was white and rest all of the area where I spread it by brush was yellowish. It is not spreadable, you need brush to spread it. Therefore, it is not easy to use it. Design and packaging of the product is similar to other same products.