As a solo female traveler, I felt safe. I loved the location: strategically located 10 minutes from both Nino Heroes (#3 olive line) and Cuauhtemoc (#1 pink line) metro stops, which I used during daytime hours. The apartment has the basics and is great for busy travelers, with a very comfortable bed! You don't hear street traffic, but as in any building you will hear people if they talk loudly and walk past your door (not often). If you're looking to spend a lot of time in the apartment, you may want a few more "frills," although Jose Antonio is very eager to help with anything. He is extremely nice, communicative, and speaks great English.