There are probably very different sucker of Einhell. This one is not the quietest but with a number of other qualities. I bought it at the beginning of our house-building, it had popped on the Elektroschiltzfräse when drilling in the ceiling next to the tube held, while smoothing the plaster joints he has made several bags full. There have been no major dust development. I like best the power on with the anti-cavitation. Even a flood in the basement he has already mastered. 4 container is full, he has sucked from the basement without bleating and he is still working really well. The only point which would not really complain for the price, the quality of the suction pipe and nozzle, which is something remiss of the operation. For the price that still is ok, is finally not Miele for 300. Therefore, even full 5 points.