The device was used in our household for 3-4 years on slab floors. As far as I know, there were only 2 floor nozzles of different widths (but I am no longer sure and only ever used the wide nozzle). Anyway, the thing makes a hell of a noise. The cleaning performance was ok. However, the motor of our model finally gave off smoke signals and then immediately gave up the ghost. Would definitely not buy the vacuum again. A little more than a year ago, I switched my floor cleaning to the "Kärcher FC5 Premium hard floor cleaner (EU version, mop vacuum)". With it, I am now very satisfied with the cleaning performance of floor tiles and joints. The device is also much more pleasant in terms of volume.