Federico was a good host!
Even though he was not around he answered his phone or email, his friend helped me with anything I needed.
The flat is pretty nice, it's good for one or two people. Very quiet, very warm. But keep an eye on the cleaning because it gets very dirty with the dust, but it's ok if you are staying for a few days. Otherwise keep in mind that you have to keep cleaning it.
The flat is very well located! you have tons of restaurants, bars, shops all around. Bus stop is just across the street. 15 mins walk you have Abasto Shopping Mall and Alto Palermo shopping. 1 block away you have Av. Cordoba. 6 blocks away you have a big supermarket.
I recommend it !
Thank you Federico