This is a perfectly located apartment particularly as it is so close to the metro. Learn to use the metro ASAP as the tour busses take ages to go around because of the traffic. Pick up one card from the ticket office (10 Pesos) and add credit as you use it. Only one card is needed for a few people and each trip (unlimited stops) costs 5 Pesos. Be aware that the location of the apartment means there is a lot of traffic noise throughout the night. Ear plugs are provided or you can sleep in the back bedroom. Also recommend the “free” walking tour as a quick means of orientation.