Beautiful apartment, in a very quiet area of Mexico City which was very hard to find. I think the word safe is pretty subjective, but I would say that I did feel very safe with the multiple password locked doors as well as the well lit street of the apartment. And to know that Isi and his family lives right under felt like another layer of security that if anything were to happen, they are right there to help. The apartment was spotless and very comfortable and spacious. Though I do have to point out the stairs. They are quite steep and small steps so do be careful and was a little tricky to carry big and heavy luggages up and down. Also, the walls are quite thin and you will be able to hear neighbours music or snoring, but I am not a light sleeper so I was okay with that. Other than that the space was clean, beautiful, well-lit and the hosts were super helpful and very responsive.