The brush can be well install and sucks significantly better than the original brush my vacuum cleaner (with rotating roller). They seem especially good finish to the edges of brush, so that toward the ground actually the air suction of the sucker comes into effect. She sucks well on the brush edges, so I usually can suck everything well at the bottom edge, where I've needed the narrow Kantendüse. The brush roller rotates with me through the air suction, as it should be, unlike other reviewers, where this does not seem to have been the case. Only downside, the roller is not height adjustable. But the plays with carpets and rugs with a pile height of up to 1 cm, as the manufacturer specifies the suitability, in my opinion does not matter.
