‘Good Tango’ is very subjective. Because your idea of ‘good’ and someone else’s idea of ‘good’ are based on their experience, and a built (or created) appreciation for what you’ve been taught.

The Former Salon Canning
There are very few places left in Buenos Aires that still evoke the majesty of Tango’s yesteryears, for many, that is Salon Canning. From the moment you walk in the door, down the long hallway towards the white double door ‘entrance’ to the dance floor, you know you’re in a special place. The walls are lined with pictures of dancers that have come and gone, artwork and photography from local tango artisans. The entry hallway almost looks athenian, almost. It may help that the columns outside add to that idea.