I bought a dyson V6 refurb on ebay from the dyson store for roughly the same cost as a branded upright vacuum. I live in a 550 sq ft apartment, space is a premium. It's compact (Hangs on a wall in a cupboard, taking up a space that we wouldn't use anything else for, rather than a large part of one of our other small cupboards) - the battery life is about 20 minutes, which is enough time to clean my entire apartment in one go, it fits under all my furniture, hoovers up our pet hair.

What more could I ask for?