expensive but necessary
Given the opportunity to do it again, I would not have gotten the white cast iron enamel Kohler sink I always wanted, but too late. We got it and cleaning it is a pain in the neck. You need this special cleaner (though there are other brands of it) but you can't just use dish soap. This dissolves stains and metal pot marks. You cannot just wash the sink and you can scrub it. This is overpriced for what it is, and it is a downright shame you can't clean the sink traditionally with dish soap, sponge and water.
Rating: 4 stars