In overall, this is fantastic. Some advantages: small, wireless, grabbed - and started vacuuming. There is so much filth on the floor that laser illumination is absolutely necessary. Everything you could possibly need is included in a set of brushes, but the vendor boasts more. I found it very admirable that he mysteriously avoids wrapping hair around the brushes. For the eyes, there is sufficient power and battery life for a two-room apartment. Several drawbacks Some of the brushes and adapters that the maker promised it would contain (such as a soft brush for dust, a brush for tough dirt, mattress nozzles, and a cabinet adaptor) were not present. The particle counter was operational when I shut it off, but it refused to restart. The menu attempts to turn it on result in a reset to "off." And from what I can tell, I'm not the only one that has this issue.