At a first glance the X series boxy design may look a little dated, but once you use this vacuum you will know why its design has not been changed since first being introduced to the market. This vacuum works phenomenally with strong suction power that picks up embedded dirt and lifts carpet pile on the first pass. It also has a top rated filtration system that does not exhaust dust back into the room. The X series top the charts for user friendliness. They are lightweight for an upright and have the ability to lay flat on the floor to easily get under furniture. They have an integrated wand, hose and 3 full size accessory tools that offer an outstanding eight foot reach for above floor cleaning. And as if that is not enough, they provide seamless transitions from carpet, to bare floors, to area rugs with no need for manual adjustment. The X series uses electronic sensors which automatically adjust the height of the power head as needed for optimal suction on any floor surface. However, though this vacuum is safe and effective for use on bare flooring, we recommend using a parquet floor brush with natural bristles for highly polished or delicate bare floors such as tile, parquet or hard wood. Everyone who has tested the Sebo X4 or X5 upright vacuum cleaner has given it rave reviews. Over and over, these are voted a hands down favorite upright vacuum for their lightweight, versatile and easy to use design. We have sold Sebos for many years with zero complaints and very little returns. That is a pretty impressive track record. These are powerful, upright vacuum cleaners and are built to last for 15 to 20 years.