I purchased this vacuum cleaner for my own use and gave my mother the V9P model, which is in the same price range. The V9P's sole drawback is that you have to keep your finger on the button during the process. In contrast to Jimmy, I really prefer him. Some benefits + The vacuum cleaner has a removable battery that can be charged without needing an outlet nearby. + To switch the vacuum cleaner on and off, you only need to push the button once (with some models, you have to hold the button with your finger while cleaning). has certain drawbacks - Lack of mobility in vacuum cleaner Sofa-cleaning nozzles are not provided for mounting on a vacuum cleaner's standard base-holder, and the foundation is flimsy and unreliable. - Parsing filters and containers is a tedious operation