I stayed for a month and I can recommend this place to other travelers.
really good location: away from crowded tourist spots in a neighborhood that has everything: (really) good restaurants, supermarkets, coffee places. It is still close enough to the touristic spots that you can take a 15 min cab to most spots
bed is huge and comfortable. Well equipped for longer stays with kitchen and appliances
Eliana was very attentive and promptly helped us when minor issues happened. I felt a lot of confidence that the host was taking care of things so our stay would be good.
The building has a doorman during daytime, Manuel, who also helped us when we had questions about the city.
Overall, solid choice and good value for money.