Luz was a wonderful host and I enjoyed my three weeks staying in Colonia Santo Domingo. It's a 12-15 minute pleasant walk to the Universidad Metro stop (immediately adjacent to the main UNAM university campus), or a 2-minute walk to local buses. Neighborhood felt very safe at all hours. Luz's apartment was spotless and she did a wonderful job helping me get oriented in the city. I'll definitely stay with her again the next time I'm in Mexico City. Highly recommended!