We don't have animals or brick dust. But I do have 4 DC, and I have a thing about very clean carpets. Since Sebo and Miele both have 'bags' (are the bags easy to reuse, btw?), can they really suck up as well and hard as a Dyson? As reliably and for years to come?
(Either we service our DC04 which has cracks in the casing as well as a broken belt, or treat ourselves to a whole new vac-cleaner).