I like the solid vibration of the floor and carpet when I use my Kirbys,metal Royals,or Sanitaires, Hoover Convertables-you hear,feel,and can see the dirt being picked up-and the tings and clacks thru the fans act as audible feedback the vac is doing the job.Of the vacs I use--feel the Sebos do the best job of the clean air machines out there.The dirty air machines are my favorites,too.
