Like many of these new Airbnb quasi-hotels, Alejandra's building contains many other short-term rentals and therefore has lots of folks coming and going. As others have said, this means the hallway can be quite loud, but the apartment itself was cozy and clean, with a comfy bed and a good shower. It was great for a short stay for one person, but it is quite small, and because it seems to be a full-time, short-term rental, might lack some of the charms and amenities (things like a cutting board or a hair dryer) that would come in a place someone actually lived in. The doormen were always available, and when there was a small earthquake during the night one night, the doorman moved very quickly get all the renters out of the building and make sure they were safe. Though I never met Alejandra, she was available via text to her US number. Overall, a good deal and a great location.