We stayed here for 6 weeks and loved it! Mariana was always so responsive to our needs and is a great host. The balcony was our favourite spot to watch the elephants and sunset!
As other comments suggested it is an older building and you can hear the elevator from the washroom and bedroom. We managed to sleep okay at the beginning of autumn, but it could be hot in the bedroom in the prime of summer as there is no AC in there (only in the main area).
Overall, we loved everything about the neighbourhood - so close to Palermo Soho or Hollywood (20-30 min walk) while being able to enjoy a quieter more local area with great cafes, empanada spots, restaurants and parks. We can't recommend this spot enough for an amazing Buenos Aires, Palermo area experience!