Francesco's apartment is really really nice, clean and comfortable. It's right in the heart of the city and you can get anywhere walking. We stayed there for a week and we had no need to use public transportation in the city. It's a 15 min walk from the main station and about the same time to the Castle (Castelo Svevo di Bari). Check-in was super easy and Francesco was always available. My mom got sick and he was nice enough to let us know where and how to get to the hospital. Luiz, which is the co-host, also gave us some tips on how to get by around town.
I strongly recommend this place! :)