Recoleta. Sleeps 7 (8 if you rent the cot). Base rate of US$115/night, discounts for longer stays. No garantia needed. 186 square meters/2000 square feet. Handy to subte, buses, Avenida Santa Fe, supermarket, park, shops, night life, Centro. Well furnished and equipped. For pics, details, please click on link. For availablitity and exact price for your stay click on "Reserve" (without obligation).
https://www.airbnb.com/rooms/28250548?locale=en&s=51&guests=1&adults=1&display_currency=USD
https://www.airbnb.com/rooms/28250548?locale=en&s=51&guests=1&adults=1&display_currency=USD