Im half Argentinian and i live in Europe , so not really a a "true" porteño, but my family that lives there is mainly based in Buenos Aires and Rosario.
And why would you not want to visit ? Sure, there are social problems, and politics suck but its also a beautiful country with lots to offer
I know, I was kidding.
Last year I visited Iguazú (although I stayed at the frontier of Brazil), and I didn't want to leave, was wonderful. And the waterfalls are even more beautiful on the Argentine side.
I just had a bad time on the first path I did, I was dizzy (besides the unbearable heat), even the old women were better than me

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But the lower path, where you are almost down the falls and completely wet, is a beautiful experience. Would return as many times as necessary

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Here are some photos I made: