I took this vacuum cleaner specifically for repairs in a two-room apartment, because I knew that I would not be able to wash all the dirt with my hands after the repair. As a result, it turned out to be one of those purchases that you say: "I do not regret a single spent." Of the dirty work, the repair included wallpapering, wall chasing with the transfer of sockets, a complete flushing of the ceiling for puttying and painting, puttying and sanding all surfaces. The builders worked during the day, in the evening I came and removed all the dirt with a vacuum cleaner. The suction power of the device is enough to collect all the waste from chasing, including large pieces of concrete that are slightly smaller than the diameter of the vacuum cleaner pipe. The narrow nozzle included in the kit reaches the dirt in hard-to-reach places - the joints of walls with floors, under the radiator, under the bathroom, in the toilet behind the pipes. The vacuum cleaner is very mobile: light in itself and everything else on four wheels - it easily and obediently rolls wherever you pull it. The internal construction is as simple and reliable as a hammer: engine, filter, bag bucket. When buying, I immediately bought a set of 5 original bags + 1 was complete with a vacuum cleaner. From the beginning to the end of the repair, I used 3 bags. They are not cheap, and there are recommendations on the Internet on how to make reusable bags out of these disposable bags. I do not share this position and I think that this is from the category of "I will buy a BMW and save on maintenance - pour Lukoil into it." The air filter, surprisingly, required to shake itself only 1 time during the entire repair, and then not much. I am glad that the suction power does not drop as the bags fill up. It is huge and there is always enough of it. During dismantling, the old building materials in the apartment caused allergies in the whole family - nasal congestion, watery eyes. Thanks to the vacuum cleaner, all this infection was quickly collected, and the health of family members improved. Of the minuses, I note that my mother now wants to leave this vacuum cleaner at home, and give the home vacuum cleaner to me for household needs. Thinking about buying a second Karcher .