Review on Goo Gone Grout and Tile Cleaner - 28 Oz - Mold, Mildew, Soap Scum, and Hard Water Stain Remover - Safe for Ceramic, Porcelain, and Tile Cleaning by Timothy Wall

This product outperformed the most expensive product on the market. I was shocked to see that it actually works. However, it still isn't very good at cleaning the actual grout, but it does clean the tile itself better without leaving a sticky, hazy film that needs cleaning multiple times. If you get really dirty grout with this product, you will have to use it several times. I left the product on the grout for 20 minutes, reapplied and brushed. I haven't noticed much improvement in cleanliness but will continue to use it for general tile cleaning. It is safer than using harsh, non-environmentally friendly chemicals.