The apartment is exactly as described : it is very neat and comfy, at an (easy) walking distance from both buses and trains.
But the host is what makes the stay extraordinary ! Diego greeted us with a warm welcome, he was really helpful a the beginning, offering to pick us up at the airport, recommending us some good restaurants in the neighbourhood... He had prepared for us a refreshing drink and a delicious cake, but also a map of the city to point out to us the locations he found worthy of interest beyond the obvious. And as if all this wasn't enough, he was also very reactive and helpful during our stay, keeping in touch in a really discreet but effective way.
Grazie mille Diego !