I will say this, though - airflow absolutely matters with turbo nozzles. I've had two turbo hand tools over the years - one came with a Handy-Way Sani-Clean that my folks had, and it worked well with that vacuum, but when we tried to use it on a Dirt Devil upright, it was completely inadequate. The other came with a Kenmore Progressive, and was never good for much with that one, except with brand-new bags and filters, but it works alright (not great, but alright) with a Filter Queen 95X.
If you have something really powerful - anything central, or for portables Riccar, Tri-Star, Miele, Filter Queen or Silver King, they'll work alright.