This place is very nice, perfectly located, and in general my colleagues and I were happy here. There is however one glaring problem, which is a lack of sets of keys. Honestly had I known, we would not have booked this particular place. We were in Mexico City attending a conference and there were six of us. This place says that it can accommodate that number of guests. However, for six of us there were only two sets of keys. Given that we did not all have the exact same schedule, we spent a lot of time coordinating with one another in order to not get locked out. Unfortunately however, on two separate occasions strangers just walked into the apartment as it was unlocked. An important point to mention here is that the elevator opens directly into the apartment, so twice we experienced people walking in unannounced. While this may not seem like a big deal to some, it was to us. Now Noemi herself was quite pleasant, although we never did meet her as she would send someone else when we asked for something. With that said however, I did not appreciate feeling pressured by Noemi to leave a really great review. Again, while she was very nice and accommodating via What's App, ultimately that just can't be enough to warrant an excellent review. Safety is a concern, and I think future potential guests need to realize that there will not be enough sets of keys unless you and your group plan on doing everything together. Take that into consideration when deciding to book.