Instruct: Classify Amazon reviews into positive or negative sentiment
Query: White Blanco Silgranit Sink

The white Blanco Silgranit (silly granite) sink soaks up stains like a sponge. The description says non porous and the opposite is true. It soaks up stains like an old white sink from the 1950's that you have to clean constantly. I had no warning of this when researching and purchasing it. It is well installed underneath beautiful solid granite counter tops which was special cut to fit the sink. To remove and replace it would cost the price of a new sink and about 2 to 3 thousand dollars to remove and replace the granite. Unless you like scrubbing your sink daily with expensive special Blanco Silgrant cleanser daily, either get used to an ugly dirty looking stained sink or don't buy this product. I wrote Blanco and described the problem and got no response. I searched on line for an easy cleaner and found expensive cleanser equivalent to soft scrub. I am now hoping there is a product that can seal the surface so it won't be so labor intensive and ugly.