I generally like Panasonic products, but the last two vacuum uprights didn't last long , regarding sucking strength. I opted for an Electrolux, this time bagless, and find it very effective. However, my model was cheap (about £80) being a trail run one, which didn't go into full production (they dropped the magic duster attachment).
People on Dogpages, and elsewhere, have often discussed cleaners, some not liking Dyson, the most popular, for various reasons. There were people for and against the Electrolux, but the againsts were ones who bought models with a small motor. Mine is a 2000watt and was bought on the basis that , if it lost power, it would be replaced.
While looking for my new machine, I discovered that 'pet' doesn't mean the cleaner has super powers to suck up hair, but that there is a turbo attachment to put on the end of the wand. This was no use to me as our suite is leather, but I did, later, buy a small powerful (and cheap) Panasonic bagless cylinder, to use on the stairs or for small spills.