Cleaned my floor to ceiling glass shower panel and it looks almost invisible now. Water just slides down the glass now and dries clear and streak free. I suggest covering your floor tiles or shower base when applying the glassguard coating as I had some overspray which made the tiles a bit slippery. Not a huge problem and easily removed by scrubbing with some gumption and a wipe over with methylated spirit. Great product and would highly recommend. I'm doing the glass table top on my outdoor furniture this weekend!