We knew about the vacuum when we bought it as our daughter has one. The only difference is we paid about $200 less by purchasing the refurbished model. One warning: There is documentation that came with the vacuum that stated it has a 5 year parts and labor warranty. Because it is refurbished, Dyson will only warranty the product for 6 months.The vacuum itself is a powerhouse. It does everything is says it will do including picking up pet hair. My only complaint is that at times, it is difficult to remove and replace the extension hose.