We loved Rocio and Nicolas's apartment. The place is in a great neighborhood, just opposite the beautiful Las Heras park. The apartment itself is wonderful! The place is spacious, extremely clean and has everything you need for a comfortable stay in Buenos Aires (wi-fi, towels, a/c, etc.). The building itself is very nice - there is a pool on the roof and a washer and dryer for residents in the building (this was really helpful to us after several days of traveling!). The place is great and I highly recommend it to anyone traveling through BA. Also, Rocio and Nicolas are wonderful hosts! They sent us several great recommendations for restaurants, tango, bars, etc - they are really responsive to emails and you can tell that they really care about the people who are staying in their apartment.