Got a Sears, from the seventies,that has performed flawlessly all these years except there is a filter in a big plastic housing that fits over the motor. They quit making them after 20 years. I'm going to come up with something to substitute though and bring it out of retirement.
We bought a Hoover at COSTCO and the darned thing just quit a few days ago. Less than a year old. You have to clean the Hepa filter goo each time as well as the chamber below it. Have another similar one upstairs and same thing. They do not work as well as the Sears and do not hold no where as much dirt and are more trouble.