I highly recommend Lautaro and Julio's place. Amazing location in the heart of Palermo Soho with amazing dining and wine bars all around in mere minutes walk away (including a few just below the apartment).
Also very accessible to the metro station & all the parks in Plaza Italia (not more than 10 minutes walk).
The apartment was as described with brand new amenities and a great patio to enjoy the Buenos Aires weather. This place was a real gem in a great city !