Never been more disappointed in a product. Even from the get go, saw streaks on my dark blue carpet. It's like the brushes aren't low enough. Should have returned right away, but was so weary of recent returns on various items (shoes, stick vac). Am physically handicapped, and even with free return shipping, it is still quite difficult getting a large box to UPS or FedEx. Even with all filters and dust cup cleaned. At this point, I can see my beautiful blue Persian style carpet becoming dingier and dingier each day. If I could give zero stars, would do so.