The apartment is on an excellent location, tons of bars and restaurants around it. Barber shop and Beauty salons, grocery shops are all at walking distance. A Metro station is also close and Parque El Retiro is near by as well.
The apartment and building is very well keep. My personal recommendation for all future guests, staying for more than three days, ask for the trash instructions! The building is very strict on trash collection times and sorting (plastic, paper, organic, etc)