Irma, the local property manager, was present and had set up a continental breakfast for us! She was always reachable by phone although only in Spanish (we had a bilingual local family member-so no problem for us).
The house is a magnificent example of turn of the 20th century Spanish style with courtyard (now covered with glass). 16 ft. ceilings, terracotta tiles, parrilla barbecue... VERY special. One word of caution: don't leave items in courtyard when it rains! The glass is only partial.
There are 3 en suite bedrooms, a 4th full bathroom accessible from hallway and 2 additional bedrooms without baths. Also can use daybed in dining room as a 6th. Really spacious.
The neighborhood is middle class, safe, has all the necessary amenities, and is a comfortable walk to subway. Lots of buses too, although we only used a couple. Also very easy to hail a cab @ the corner. (Approx. $500 pesos to airport.)
Great intro to Buenos Aires or a longer stay for anyone. Try it!