Gel-Gloss one step cleaner and polish - anyone use it?

I just used it on my white American Standard (Americast) sink. Amazing! It saved the sink. Cleaning people used abrasives in the sink. I didn't find out until the gel coat was gone. The white sink always looked stained. So Ceramabryte and magic eraser to make the sink almost white, then gel gloss to completely whiten it and wax it so it can't get new stains. I'm supposed to use the gel gloss once per month to prevent any stains from happening. Two weeks so far. I'm very happy.