-
We are the same. We bought a Shark after recommendations on here, but it went from being awesome to being rubbish in a few years. It overheats all the time so you do half a room, leave it to cool down for ten minutes, then do the other half. The carpet roller thing just eats hair and you have to pull it all apart regularly and unblock it, and the power seems to have dropped off so it isn't as effective as it was.
Have just bought a Vax in the sales and so far it feels like a decent buy.
Our shark was a bit rubbish. After a year of frustration it was returned and replaced with a Miele which kicks the shit out of it.. the first few vaccuums through of the house it picked up about 4 times as much dust as the shark ever had.