I have been using Carpet Stain and Odor Eliminator for about 10 years. I first purchased it at my vet's office. When that can ran out I realized I couldn't have dogs and live without it. My vet's office no longer carried the product so I began buying it 6 cans at a time. It is the best stain and odor remover that I have ever used and I have had to deal with pet accidents all my life. But it, it's great!