The Ibis Obelisco on Corrientes could be a great budget hotel for guests needing to stay within the center of the city. It is convenient to the metro, buses and lots of touring possibilities. also close to Florida Street for shopping. The inn offers limited room amenities, but the faculty are wonderful and the rooms are comfortable (if a bit small). The well-insulated windows truly do close out most of the road noise, and the beds are comfortable. You'll only be given one towel per person (but more can be had at reception, if necessary), and breakfast costs extra, but may be sensible for a complete offering. Lots of restaurant possibilities right within the neighborhood!