We had a wonderful stay at Marlene’s. Marlene is very nice. The apartment is so clean and centrally located- and safe. There is security 24/7 and security personnel is very friendly. I would be comfortable staying there as single woman. Good WiFi for working. Tons of bars, restaurants and cafes nearby. And you have beautiful Parque Mexico practically around the corner. Great for jogging on Amsterdam Avenue. Not as great is that it’s on busy street of Nuevo León, and building has no amenities. I would highly recommend a stay here.