suckolux
I've got the Windtunnel Deluxe #5462 clear red, not self propelled. They look like the same models. Where yours says 4.0 there in front mine says 26.0 cleaning efficiency. Other than that pretty much the same. I really like mine, although it's heavy at about 23 lbs. I rescued it from a dumpster about 10 years ago. It was in great shape, the bearings in the roller were dry,dirty and loud. I was able to clean and re-grease them which reduced the noise by about 90%! When the brushes wear down, I'll buy a new roller. It does a good job of cleaning. I'm not sure when they produced these, I remember laughing at a commercial showing the dirt sensor, but I actually like having it now that I have it! The suction at the hose is good. Hope you like yours too.