Like I said, YMMV. For me I think it's drop dead simple to shove the Cimex underneath desks. You can let go of the machine, while it's running, to move chairs and other stuff out of the way. I agree that a rotary machine has a slight degree more agility than a Cimex has. But that comes at a price. Firstly, the rotary machine will wear your body out on a big job, especially the size of the one described here. And a rotary can also gobble up wires/cables, whereas the Cimex will just spit them out. On top of that, the Cimex has a much larger tank. And lastly, it scrubs more thoroughly than a rotary machine (the Cimex spins at more than twice the speed of a 175 - and it's rotation is planetary rather than rotary). For my money, a rotary doesn't hold a candle to that.