The place is in an amazing location--walking distance to some of the best restaurants in the city (Rosetta, Contramar). Rosetta has a perfect cafe/bakery right around the corner. Uber rides to most parts of town average around 50 pesos.
There is construction going on right around the corner, and it starts around nine each day. The building across the street has bright lights at night, but the shades in the apartment keep most of the light out. Neither of these things were huge issues, but they are just something to be aware of. It is a very busy city, after all. That being said, the street gets very little traffic, and we felt very safe.
The communication was perfect, and Carlos was very accommodating. We couldn't have asked for a better host.