Really cool place in a leafy part of San Telmo. It's an old place with antique furniture and antique fixtures but all the modern stuff works well and the internet is especially fast for BA.
There are plenty of markets, bars, cafes, and restaurants a short walk away. Parque Lezama is 5 minutes away and is one of my favorite parks in the city.
Julian knows the place well and is quick to respond to any questions. I'll definitely be staying here again the next time I'm in town.