We spent 10 days in Buenos Aires at Martina's place.
First, Martina is a very charming, easy going and helpful person. She provided us with maps of the city, offered suggestions for neighbourhood restaurants and even gave us a transit card!
Her place is located very conveniently in the charming neighbourhood of the Recoleta. The listing is accurate and the place really nice.
I would certainly recommend it and would use it next time that I find myself in Buenos Aires.