I bought this shampooer about 2 weeks ago. The weekend after I bought it I shampooed my whole upstairs in my house, 3 bedrooms and living room. I have 3 dogs so I had some set in stain left by my older Hoover with the spin brushes. The shampooer not only got out the set in stains but fluffed my older carpet. My carpet is softer than when I moved in. I love this thing. Everyone with pets needs one. You won't be disappointed.