I rented one of Sergio's 2 bedroom apartments for 4 people and we had a fabulous time. The apartment had all the modern amenities and it was clean, affordable and in the best location. Palermo is a beautiful neighborhood and we had cute cafes and restaurants within blocks of the apartment. Sergio was responsive to all my questions and very accommodating. He let me know in advance that the original apartment we had booked would be unavailable, so he put us up in the same apartment on another floor of the building and gave us a free nights stay. Worked out perfectly. I would stay here in a heartbeat the next time I visit Buenos Aires.