The first robot vacuum cleaner in the house, so there is nothing to compare with. Bought in March 2022 based on reviews, including here. Replaced after 2 weeks. stopped charging from the charging station. 2-room apartment, 55 sq. m., Hong Kong center, no pets. A full charge is enough for a full cleaning without problems. In general, I am satisfied with the quality of cleaning - the result immediately became noticeable. Works every day according to the schedule and still finds dust :) The bath and toilet have to be closed during cleaning - the thresholds of 2 cm cannot be overcome (climb back out). Also, all cords and light shoes (slippers) must be lifted from the floor. Works not very noisy. Often buggy: can hit a wall or furniture in a circle for several minutes and get up with a message (please, clear my path). It is treated by installing it on the base, cleaning the filter and sensors (4 pcs) or rebooting. Reboot (switch to the off position) kills the time and day of the week settings, but for some reason the cleaning schedule setting does not crash. The filter must be cleaned after each cleaning. I do it with a regular vacuum cleaner. For 3 months of use, the first harmonica filter is already almost killed. I think it will last another month and a half. So stock up. The circular mini-brush on a magnet has practically lost its villi in 3 months of use: it is torn out when cleaning from wound hair. The battery, despite a day of full charge, may show that it is discharged after turning off the toggle switch (reboot). It reaches the base, probably, in 40% of cases. Bottom line: given the high price - only three points. But maybe it's because I have nothing to compare with.