Here’s what I can tell you after a year-and-a-half of living with brilliant white Caesarstone Blizzard Quartz: 1. No problems with Caesarstone. 2. Ring stains come off with Windex, damp, soapy sponge, or Soft Scrub® [GEL ONLY!]. Use Bon Ami, Barkeepers friend or Comet/anything abrasive on honed surfaces only, or else the tops will lose their polished, sparkling shine.] 4. If all else fails,