The apartment is ideally located in the heart of Listarria where there is a bounty of restaurants, cafes, and nightlife. Also, the subway is conveniently located a very short walk away, and so is the fabulous (and free) Bellas Artes museum.
The host and her son were extremely prompt and courteous in responding to questions and issues when they came up. They sincerely care about hospitality and it shows--ie: they provide water and even a bottle of wine as a welcome treat. The apartment is clean and has a few extras that I personally always appreciate--actual drawers to stow clothing and enough counter space in the bathroom to set out sundries. The water pressure was great and there was plenty of hot water. There is no HVAC but the space heaters provided kept the apartment warm enough at night.
Even though the apartment is located on a busy plaza of restaurants, it is quiet enough at night to get a good night's sleep. There could be more practical information provided such as a map of the area, a subway map, local restaurant tips and menus, and a written explanation of how to use the subway system. I re-wrote them an English house rules list to help with this and I hope future guests can enjoy the benefit of that.