A couple of people mentioned on my Fashion Report that they might consider BsAs as a future destination, so I thought I'd share my photos so that you might get a better idea of the area.
The waterfall photos are from another city, Puerto Igazu. We had to take an extra flight there - about 2 hours of travel each way. But! Very worth it. If I were to do it again, I'd spend more time here.
My 2 cents on BsAs: if you have been to Rome and have limited opportunities for International travel, you can probably skip Buenos Aires... it is very, very similar in feel, just on a slightly smaller scale and without the Colosseum. Lots of Roman-type pizza, pasta... even the same general vibe going from the touristy center to the upscale residential areas with the pretty parks. Of course, if you love Tango or Argentine wines, that is another case.
We didn't get to go here, but looking back it would might have been cool to do Bariloche and Puerto Igazu. Bariloche was recommended highly by a client of mine - great Euro vibe in South America, only Swiss instead of Italian.
Hope this might help someone in the future!