I am very happy with this product. It was used in a small bathroom that has large tile and wide grout lines. The grout was stained in several areas and no amount of scrubbing, bleach etc would remove all the stain from the grout. I chose ivory after following directions the tile grout looks great. One small area after it dried, you could still see a faint look of the stain but after waiting several hours to make sure it was completely dry I just applied the color again just over the faint look of the stain and now it looks completely new. The bathroom tile looks so clean and new. This product does the job. Being used in such a small area, there is a lot left but even if it needs to be redone from time to time it is worth it. So far it has been about 3 weeks and no sign of color fading.