I stayed at Javier's place while visiting Mexico City and it was a great experience. Javier was super helpful when it came to recommendations about things to do and places to visit. He was always very quick with his responses whenever I had questions and very attentive. The apartment was very nice, in a good location with lots of restaurants nearby, and very walkable and safe. The apartment itself was really nice and clean and has a great view of the city. It also has good amenities including a gym and pool. I would highly recommend Javier's place to anyone visiting Mexico City.