The best thing about this apartment is the location - it could not be better. Situated within a short walk of Plaza Italia, Palermo Soho is very safe. The apartment is within a very short distance of some of the best restaurants and cafes in BA. In particular, Il Preferido is fantastic - we ate there twice. There are a lot of authentic local places as well as slightly more touristic so you will be spoiled for choice.
The apartment is as described - very quiet with everything you need.
It is easy and cheap to use either the SUBE underground metro or taxis to get around. We also did the open-top bus tour which is a super way to get oriented - the ticket lasts 24 hours from point of first use so if you start at noon on the first day you will have all day plus the following morning. Hopping on and off is straightforward and we saw La Boca and the Plaza de Mayo. San Telmo on the Sunday was great as well as there is a massive market and tango dancing at Plaza Darrago.
Gaston was a great host. He met us and gave us lots of tips and assistance. He was always available by phone or WhatsApp and responded promptly. We did not get to meet Barbara.
We really enjoyed staying here and would return.