Since we made a reservation, we have been in contact with Chiara. Once we landed in Bari, she gave us directions to her apartment. We were able to reach the apartment very easily by train: 20 minutes and then a short walk across the street.
We arrived at Chiara's place after 10 pm, and she was waiting for us at the building entrance. Afterward, she showed us the department and the facilities (which looked just like the photos) and gave us some tips on how to get around.
In spite of our concerns over staying near a train station, it was not at all noisy. On the contrary, it was very convenient because it enabled us to travel quite easily to other places.
We spent seven delightful nights at Chiara's place, and we strongly recommend it.