Elbio is a great host - he welcomed us at the door, and during our stay always responded to messages within a few minutes.

The apartment is in a great location - after a week in Buenos Aires San Telmo, I can say San Telmo is a perfect place to stay. The apartment is nice and you can hear the tango coming from the Plaza Dorrego when you stay on the terrace.
The only downside is the bed: we didn't manage to find a setup for two people actually sleeping together (there are two separate mattresses on different heights). Apart from this - highly recommended!