Cleaned the grout.  Ruined my tiles
Cleaned the grout on my bathroom floor but took the glaze off of my bathroom tiles. Be VERY careful when using this product.  Make sure it is ONLY on the grout and not sitting on your tiles. I've been trying to figure out a way to fix my tiles without re-tiling the floor.  I'm giving this 3 stars because it DID deep clean my grout.
Rating: 3 stars