I have been using it for a year and a half and each time only positive emotions. The first week after the purchase, I vacuumed 3 times a day, simply because I liked it, and there was always a full container of dust (it turned out that the old vacuum cleaner just pretended to clean). Over time, the dust became less. If it suddenly breaks or I decide to change it, then only on v11, as they say it is even more powerful.