Yeah I've got a Worthlesshiem...not really that impressed with it. It is rediculously hard to get the heads on and off the arm and it can be hard removing the arm from the handle at times too. It's also hard getting them back in - the the point where we snapped one of the plastic guiding arms along it about a month after buying (To which Godfrey's had the nerve to accuse us of abusing the vac, then made us wait 2 months for a replacement) But mainly it always gets clogged up with our girls fur, which is the main reason we bought the damn thing.
My parrents have a big Bissell which does a very good job on our carpet at picking up the fur/dirt, so I'd been thinking of getting either that or a Dyson...will have to take a peek at this Dyson in store I think. Thanks for the heads up peoples