Its pros: Everything is fine as long as it is under warranty (batteries) Has cons: Friends, you and I live in the time of "disposable" cars, and all the rest of consumer goods . But when you give 50,000 for a vacuum cleaner. You somehow count on the fact that this is not just another marketing crap that will work out exactly the warranty period for you and its repair (replacement of the entire battery pack) will cost half the cost of the vacuum cleaner . The bottom line is that this vacuum cleaner was bought at the dacha. Used it every 2-3 weeks. Has always been kept in good battery condition. I have a lot of construction tools, batteries, I know how to take care of them. Bottom line: 2 years and a half and the batteries died . Stupidly vacuums for a minute and that's it . I got on the Internet to read how to repair, etc. : this manufacturer artificially, on a non-collapsible, non-replaceable battery board, solders some kind of , which, according to its performance characteristics works for 2-3 years and dies, drowning the entire block behind it. For non-believers who will foam at the mouth to prove that this is crap, watch the videos on YouTube. You will understand everything. It turns out that this is a very expensive toy (fortunately it has fallen in price) for exactly 2-2.5 years . And all vacuum cleaners from this manufacturer with this principle of operation are the same.