The choice was between Dreame T30 and Redroad V17. But the price difference is 2 times. I bought Redroad V17 for 14500. In general, I am satisfied with the vacuum cleaner for this price. Of the obvious disadvantages is the reduction in power in Turbo mode. As I understand it, the vacuum cleaner has engine protection against overheating, and therefore, in Turbo mode, it reduces power. Judging by the sound at maximum power, it works for 1-2 minutes, then a clear decrease in power. Also, when vacuuming the sofa, the engine overheated once and the vacuum cleaner stopped turning on with error E05 (a description of this error is in the instructions). Also, from the minuses, I can single out a dangling non-return valve (which prevents debris from falling back into the pipe when the vacuum cleaner is standing upright), for me there must be some kind of spring or other mechanism that is more rigid. If you want to save money, you can buy it, but if you can pay extra, it's better to buy Dreame T30. I'm ating my review after a few months of use. The vacuum cleaner works at maximum power for a minute, then it writes a pipe blockage error, but in fact, after this error it turns on again and vacuums for a few more seconds and so on constantly until you switch from turbo mode to a weaker one. Those. In fact, this is not a blockage of the pipe, but probably an overheating of the engine. It is very difficult to use in less than turbo mode, because the suction power is not sufficient. For example, now in winter, small pebbles, 3-4 mm, get into the house from the street along with snow, and so the vacuum cleaner can cope with them only in Turbo mode. In general, I put only one star and do not recommend this miracle of Chinese engineering for purchase! I wish that I saved, but as folk wisdom says, the miser pays twice.