I had a 5400,
Which I have passed on to my daughter. Still going strong, Panasonic
upright attachment set, with tapered end piece to insert into the short hose of the Windtunnel.
Then you have an awesome cannister like suction and convience. Especially when you buy a new or a used floor brush for hard floors, under beds, and furniture. Also
great for cleaning the car especially with a tubo nozzle, Great on Carpeted steps too.
For me all the fun of a Kirby, but with a Hoover Windtunnel and less hassel. Liter weight too.
Norm