Taken for a small 2-room apartment, the volume of the dust collector and power are quite enough - it is not phenomenal, but sufficient. He coped with the task of "the wool of a Siberian cat on a carpet, a carpet with a low pile and a sofa." Compared to the existing Zelmer ZVC722ST with aquafilter: the power is much less, there is no turbo brush, the device is more compact, less maintenance is required after cleaning. Shaking out is not as convenient as I expected, but I can’t compare it with other cyclones. Very quiet - you can talk while it is working.