I had a great stay at Alejandrina's. She was always in excellent contact with me, quick to respond to any questions I had, and Beto was always there in case I needed anything. I stayed for several weeks there and it was perfectly safe and friendly neighborhood, a great spot to have near the airport but also an easy trip to the center by metro. The place itself was exactly as described and had everything you would need for a short or long stay. I can definitely recommend the place and the people you'll interact with!