This was a lifesaver for a terrible pet mess!! I usually start with water and then use a cleaner and a thousand paper towels and cloth rags in my normal process of cleaning a carpet mess. But I can't believe I've put off so long getting one of these. This thing worked like MAGIC on the very dark colored doggie diarrhea I needed to clean up. It is completely gone and the Clean Slate Carpet Spot Cleaner is my new best friend. So easy to use even for easy everyday spills! And the hose rinse tool works so easily to clean the Hoover back up like new after each job. This thing is the best!