I had a great first visit to Mexico City staying with Mario in his lovely, clean, quiet, well-equipped, and well located apartment. He was a great host and roommate: offering great tips and being friendly while also respecting my privacy. The market on his street on Tuesdays is NOT to be missed! And don’t be afraid to try the subway: it’s a 5 minute walk from his place and will take you into the heart of Mexico City for 5 pesos in 15 minutes.