Centrally located, near the obelisk, Plaza de Mayo, Sunday street market at Defensa, wildlife refuge at Madero, San Telmo, Teatro Colon all a brisk walk or a couple of subway stations away. Pablo was an excellent host, very accommodating, quick to respond and allowed me to check in a little early due to my flight time. I would definitely recommend ro anyone wanting to be in the center of and discover the historic districts.