You know those mystery spots that every carpet seems to get but absolutely no one knows how it got there, what it is or volunteers to help clean it? Yeah....that. The one that doesn't completely go away even with hands and knees scrubbing. Well, say goodbye to that devil stain. This cleaner is THE BOMB. I have used many carpet cleaners in my time. I have never used one that was SO easy, SO effective and made my carpet SO clean. It really lifts all those fibers and really gets deep down dirt. I received this product for free for my honest opinion and review and I have never been so satisfied with my results. No pet hair, no stains, no odor and the power and ease never let up with this Hoover Dual Spin Pet Plus Carpet Cleaner.