Jamie, My Neighbour has a MASSIVE family over 16 people in a terraced 5 bedroom house, exactly like us but ours is a little bit bigger. They had 2 or 3 vax's, a cylinder bagless one, a 6131 X2 and the little pro models with the tub design and massive clips for the bucket, they all failed, then they got an Eco Autosave Henry and they said that is nice, but the performance is crap, now they got a DC33 Multi floor about a couple of months ago and they say its the best vacuum ever! I recommended the Dyson brand to them, and they chose the model. So far, the DC33 seems to want to vacuum more. it gets emptied every 3 days because of it getting full with no clogs. I love the fact they have a 5 year warranty.
My Dad's friend has a DC27 Multi-floor and uses is in a MASSIVE building, the bin gets emptied only when full I don't think he knows about the filters, they had a massive Numatic on a trolley I am sure a few years ago!
I used a DC08 for plaster, the Origin one for 4 months, used without any filter because I was fed up of the fine dust going onto the filters, so I left them out, then I left the vacuum outside and took it home a few months later I think (if memory serves me correctly)
We use Dyson's in our 3 story 5 bedroom household with loads of Family members, they are like commercial vacuums, like seriously! 3 kids, pets, they are just amazing, we had Vax, Hoover, Argos value Range, Proline, Hitachi, Morphy Richards, Electrolux, Dirt Devil, Asda smart price, Bissell, Zanussi I tried, you name it, Dyson is the best! I have used Henry at my Cousin brother's houseits a 2006 or 2007 model and it was good,used a 2012 one at denention, had less suction than I thought, crap. My Cousin brother, his mother has a Henry with a push switch and a little tiny hi lo switch, Then when my Aunty moved house, she got an Eco Henry, I tried it and Wow! Has an amazing design, HEPA flow bags are amazing! the motor is so quite, I can have a conversation by even whispering, I can use it in the bedroom when My little cousins are sleeping

The suction was the best out of ANY Henry I used, So in my opinion, Dyson and Henry are the best vacuums