" The only time I think the upright would be better is if you have a large open space with no obstructions to vac."
Funnily enough, that's how I feel about cylinders!
I borrowed my mum's Miele to see how I would get on with a cylinder (always had uprights). It drove me nuts. Was a total pain getting it round obstacles. In a clear space it would just follow me around, but if I changed direction to go past something it would hook onto that thing. Particularly irritating when there are loads of toys.
With the upright I can just move the item, often one-handed, vac where it was, replace it (or not), and continue.
The only drawback to my Dyson is that it is too heavy o carry upstairs. We bought it when we lived in a flat. It's also to bulky to vac under things, but that's not a big deal as I can use the tools.
When I need to replace my Dyson I'll look at Sebo - they have a built-in, ready-for-use wand attachment. You don't need to bend down, do any fiddling, you just pick it up and use it, without changing anything.
Uprights or cylinders, the Marmite of housekeeping!