We stayed in Mariano's apartment in July as a group of 8 (including young children) and really enjoyed our visit. The apartment is perfectly located in the center of the walking district, and restaurants and bars are right around the corner. Still, at night the bedrooms are quiet due to outline of the flat. The apartment is very spacious and clean and is well equipped. Mariano was very helpful before and during our stay and always responded instantly.
Only thing which could be improved was the wifi, which was rather slow. Nevertheless, we would definitely stay there again and definitely recommend it.