This apartment seems better suited for short stays. Nearly all of it onlooks Mazatlán Avenue and Vicente Suarez, which is a quite busy corner. There's a sushi restaurant right below. Expect noise (loud vehicles, street vendors and musicians, random people yelling, etc) day and night. Windows are paper-thin so there's not much sound insulation. If you are a light sleeper, ear plugs are mandatory.
The place itself is comfy, looks nice just as in the pictures. It is a second floor, no elevator and stairs are quite steep, so be careful when arriving with luggage. Paola was always nice and quick to reply and help. The neighborhood is excellent — safe, lively and fun, and you will find everything at walking distance.