Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worked great on a flute

Before I tried this product, I tried another metal polishing cloth on a silver plated flute that was tarnished. The "miracle" cloth scratched the surface almost like a brushed nickel appearance. But then I found this Blue Magic stuff at an auto parts store. I figured it can't do any worse. I was pleasantly surprised that it so easily smoothed out the damage and made the flute smooth and shiny again. I'm impressed. This stuff works. It was easy. I rubbed it in and rubbed it off with a cotton terry cloth. It actually removed the scratches from the other polish and made the surface look smooth as a mirror again.