We had a lovely stay in Ariel’s apartment. It is in the heart of San Telmo and very walkable, and from there easy to walk to other neighborhoods such as Plaza de Mayo, and not far from a big beautiful park Parque Lezama that our daughter loved. Because it is a touristy neighborhood, restaurants were a fraction more expensive, but also because it is a gastronomical hub there is a wide variety of cuisine, including notable Argentine restaurants along with Basque, Mexican, and Peruvian.
The apartment was cozy and functional, and free of delicate decorations that make parents traveling with a small child nervous. The patio is safely enclosed and a great way to feel like you’re in the street from the comfort of your own home.