Bests & Worsts Reviews from Amazon

Hi, I bought this product before my Blanco sink was installed to be sure I had it on hand. My sink is Anthracite and seemed to have a slight white film in places after it was installed. So, I grabbed my Blanco cleaner and it really didn't seem to work well. I tried again the next day--it looked worse! I called Blanco--they said abosolutly NOT to use colored sink and surface cleaner on DARK sinks!! (Even though I initially found the product on their web site. Cust. Serv. said they were changing the website!! Blanco told me to use a green Scotch Brite pad and Barkeepers friend or SoftScrub! MUCH better---way less expensive as well!!