My wife and I spent 3+ weeks in the southern cone in January and February, 2014. After a couple of days in Rio, we went to Iguazú Falls, then B.A., then Bariloche, then Montivideo, Colonia, Punta del Este. We probably met more Argentinos in Punta than the rest of the trip combined. For the most part, we were treated very well. Argentines are not the definition of simpatico, but we were treated cordially by the great majority. We spent one day at Iguazu with a much younger couple from B.A. who were, indeed, muy simpatico. After another day at the falls, another young lady invited us to share
mate with her. That was an honor and very gratifying. I actually acquired a taste for
mate. We would definitely go back.