Kev said:The Festool would own the Dyson in a street fight.
Dyson's do an ok job, but I wouldn't rave about them. We've got 3 Dyson's, the upright is dead and is going in the next council clean up. The powerhead barrel like Dyson unit my wife uses in the house is ok, but I think our previous Miele was better.
I really like my little hand held cordless Dyson - but the battery life is rubbish - wish Festool made a small cordless vac with an 18V 4.2Ah to juice it.
Seriously! I've been considering getting some Milwaukee 18V drills just because they have a good little cordless vac! I would love to have a small unit for final cleanup after all the other tools are put away and cords are all rolled up.
We use a battery-powered Dyson at home because we live in a small space with wood floors, and it seemed like a good idea at the time of purchase. I love how compact it is, and wouldn't mind one for jobs, but its battery won't survive trying to clean the entire 800 sf apartment.
As for canister vs upright, the canister is much easier when trying to clean up underneath furnishings!