It sucks so loudly that you have to brace yourself to clean. By reducing the intensity, this improves. So there is no need to work it at full power, which I imagine means less strain on the motor. If you attach another nozzle, for example from an old vacuum cleaner, it doesn't give you any trouble. It probably means that its nozzle is super effective. It is super compact in its design and fits in very small storage cabinets. However, it has a regular bag widely available on the market (and in imitations).
In addition to the classic attachment, it has a nozzle for hard floors (like all vacuums) and a double one (with a double-sided end, two in one) small nozzle for corners and sofas. It DOES NOT have a small brush-type nozzle! The problem is that this double attachment it has is not stored inside the vacuum in a special compartment, like in all the vacuums I had before. So you put the vacuum away and you have to make sure you have the attachment in your pocket for corners, sofas, etc., and of course, not to lose it by forgetting where you put it.
Update January 2021. No change from what I wrote. Works fine.