Moved into a new house and there was a very large stain in the bedroom leading to the office. I tried just about everything to get this stain out, including down on my hands and knees scrubbing the carpet with no luck. I bought this on a whim, thinking what the heck, it's not expensive and what could it hurt. I am so pleased, even though it didn't get the stain out completely, it made it so that you really have to look for the stain to know it's there. I am so happy with this product I would absolutely recommend this to someone.