The location is excellent - 4 minutes walk to churros and metro - and Mexico City is fantastic! And Cristian is very nice and so responsive in general. The building has video security, and the apt is spotless and beautifully decorated. All great things! But the apt is so dim (naturally as it has no external windows) and had so many missing/burnt out overhead lights and lamps (including one that just had a frayed cord/no plug, and another which had a cord but busted prong) in the kitchen, living room and bedroom. This may seem like a small thing until you have to find anything or get ready (ie a very dim bathroom painted all black with black tile). Because we were only there two nights I didn’t bother contacting him with the burned out lighting problems, but if I had been staying longer I would have needed to because it was like living in a (beautifully decorated) cave. The living room futon cannot be slept on - it’s worse than terrible - so really the apt is not suitable for friends who need their own beds. The noise between the units is a bit bothersome - we could hear the neighbour’s TV word for word, as well as coughing etc - so bring ear plugs if that is a problem for you. Cristian was great about checking us in early and letting us stow our luggage in his locked room, but, when we came back to apt later in afternoon, we had another guests’ luggage in our room and not our own. After too many frustrating attempts at communication with the two (very lovely/friendly) female custodians and via text with Cristian, I just texted the number on the luggage and communicated directly with the guests myself - and found out they weren’t coming back for four or five hours, not the 15 minutes I had been told by the women to stay and wait for them. ( I think their English just wasn’t strong enough to have understood what the luggage owners had been telling them about timing of return - but I had to repeatedly encourage them to remove the wrong luggage from the room, when they didn’t want to haul it down the stairs to the locked room because it was so heavy). We did have the earthquake the first day we were there and Cristian was very kind to text us to make sure we were okay - which was a thoughtful thing to do. Cristian did provide some lovely restaurant recommendations via the app, and we took him up on two of them - and because of that we had a quaint brunch, and drinks with a lovely view over the archeological area - so we really appreciated that. It would have been helpful to have a binder in the apt with location/map to get groceries and alcohol, information regarding wifi and password, and also to have emergency numbers /hospital locations in case the earthquake...