Damían waited for us very punctually (our plane was late) and explained everything quietly and quite well.
The apartment is nice, well-decorated and clean. The heating worked very well, which was important for us who lived there in the winter.
Though we 'll make 3 little criticisms : 1/ the saucepans are badly dented and most of them lost their handles; 2/ the seats are rather hard; 3/ the apartment was a bit dark as it is in the ground-floor (which is surely pleasant in the heat of Bs As summers, but we were there in the winter...).
Palermo is a very good area, the appartment is very close to Plaza Serrano and the neighbours were friendly.