Verified Purchase
I bought this to try out as we have hard water and I dislike having water stains on my porcelain. While expensive, this product dissolves water stains and mineral deposits, so if I don't have to use a pumice stone, it's worth it; the key is to let it sit on the surface for at least 5 minutes to let it work. The fragrance is pleasant and the product "sticks" well to the surface.