Ambfib- you do not have to be a "believer" to hear profound differences between the factory supplied jumpers and after market cables. It is not subtle. It sounds like the dealer did not show the speakers off to anywhere near their capablity. I think you would be astounded if they are set up well. (And I say this, not as an advocate just for the Avantgardes vs. the Acapellas or any other brand, but simply because I have experienced the differences as I have changed out wire, repositioned the speakers, played with the woofer tuning, added acoustic treatment to my room, experimented with different combinations of preamp/amp and long/short wire configurations, as well as brands of wire).
I cannot give you any insight into the real world experience with Uno or its variants- I have none.
I cannot give you any insight into the real world experience with Uno or its variants- I have none.