I had a great time with Daniel and Mariana. The house and room looks great and there is enough space. There is a lot of interaction possible with the other guests which makes the stay very cozy indeed.
Mariana and Daniel can be reached easily and they have some great suggestions on things to do in the neighbourhood. The location is very good just in the middle of some nice neighbourhoods.
I had some issues with my luggage that arrived a couple of days later from the airport. luckily both of them helped me out very well so I could make the most out of my stay.
In short if you want a good time in Buenos Aires you should stay here.