Whether you're staying a few days to a few weeks, you cannot go wrong with this place at all. It is located in the center of Buenos Aires and about a 5 minute walk in any direction to monuments. There is a grocery store next door for your convenience, and your own place to cook. What I loved most about this place was getting to know other people from all parts of the world. There are about 5 rooms in the entire place and the place is dedicated to people traveling through or staying in the city.
Matias was a great host as well. I greatly appreciated his hospitality and his willingness to accommodate me anyway he could. I highly recommend this Airbnb!