We have a Samsung. It is completely crap. The in-pipe and filter block after every time you use it, even if it was only briefly. It sounds louder than a rocket taking off, and the suction is rubbish. The belts keep snapping and every time you pick it up to move it, it leaves a load of dirt behind.
I'd love a dyson, but frankly can't afford a couple of hundred pounds for a hoover.
Is there a good, cheap, reliable alternative?