Yes, I've been to BA. Finally!
Very happy to see smiling Gaston on court.
I was there for 2 weeks with my BF and we have seen a lot of BA, together and separate. (He did not go to tennis and on tennis days I hung around with tennis people.)
I did not do much "sightseeing" but felt very much at home. My BF liked it there, too.
We would surely coming back to see more of Argentina. Then we love to see you in Bariloche.