A quality tool for a quality job. During the use nirazu did not disappoint. Often the mains voltage jumps, but so far this has not affected the performance of the machine. I do not turn off the turbo speed button, because I don't think 6th gear is high enough. Everything spoils the dust container. I even had to cut the filter a little so that the lid closed tightly. After work, there is too much dust for a machine of this quality.