The One was a very poor vacuum, around in about 2005ish, and sold for about £200 if I can remember rightly in Argos. It was to compete with Dyson, but failed miserably.

Poor quality filtration method used caused the airflow to be restricted too quickly and most burnt out their motors a long time ago.

Poor materials used in manufacture meant parts broke off, and the wheel mounts were particularly vulnerable.

Dreadful performance on hard floors due to the brushroll having a pop down "brush" behind it, but the brushroll could not be turned off.

Here's one on Ebay - they don't come up very often now, so quite collectable in a funny sort of way - moreso due to them being one of the worst ever mass produced vacs.

They became the "Performer" and "Performer Pet", and essentially was a colour change and the addition of a better hose, and separate brushroll motor, to try to improve its performance on hard floors.

Filtration was unchanged so the overheating problems remained. Still a poor offering.

The release of the Airvolution filtration system on the Freedom and Slalom was a huge improvement on the "One" and "Performer", and finally, Hoover had a reasonable multi-cyclonic lineup to succeed them.