I don't do reviews... but the choice was new carpet (cleaned 1x year professionally) or your product. Old stains just would not come out. Worked so well I used on other rooms and no cleaning co this year! Even my sister remarked how great my carpets looked and she sees them every 3 mos. Still have one stubborn stain to keep working on...and several took multiple applications. Even used it on my moms posturpedic mattress cover...you know the type that is rubber against the foam but fabric on top...must be completely unzipped to remove which is painful. This worked like a charm. Have already recommended to 2 real estate clients.