I have decided for the Kärcher and never regretted this purchase now. The suction power is enormous and loses very little of the original force when the suction bag is full. The powerful suction requires a great effort to move the floor nozzle on a smooth floor messengers. Here we are at the only drawback: the floor nozzle adheres literally to smooth surfaces and plastics, as well as the gray rubber lip are worn on concrete in no time. Here I want a floor nozzle with wheels, which ensures an appropriate distance from the surface. That the pipe is made of plastic, can get over, after all, it seals the connections very well and it is lighter and thus easier to handle than a stainless steel tube.
The opening of the teat is well thought out and allows for quick and easy change of dust bags.
The 5 rollers on which the Kärcher stands provide a stable grip. The 5th wheel can be locked and thus prevents them from rolling the nipple.
Conclusion:
The unit is well on the whole. However, the floor nozzle does not match the otherwise high quality standards.