Advantage: In Naßsaugbetrieb good suction when the cleaner is cleaned after each use, otherwise clog the suction cup and Delonghi is pissed.
The cleaning is expensive and is complicated by all sorts of fins and edges. Simply fast something goes absorb unless Delonghi is set up on wet areas. But afterwards cleaned at least 10 to 15 minutes sucker, otherwise it stinks like a sewer pipe.
Conclusion: Who needs a sucker for clean water and wants to demonstrate its neighbors and the family, how many times you can suck up dust, is happy with the Delonghi, everyone else does. I have my only reason not thrown away because it was too expensive to me. Benefit I'm doing him hardly ever, only when I have to show the neighbors over how diligent I am at home.