Danilo's apartment is very well located, it's a little bit older but is clean and safe. It has wifi, tv and air conditioning that saved me in the summer of Buenos Aires.
The apartment is basically on the side of the bookstore El Ateneo, has nearby markets and many delicious restaurants. It is very close to the parks of Recoleta and Palermo, which was phenomenal.
Danilo was a very helpful host and always responded quickly to the messages.
I highly recommend staying at his apartment! ;)