This appartment was well-located, as it was very close to the station and not too far from the city center (you can get there by walking 20 to 30 minutes). It is ideal if you want to visit the city but also go to other locations in Italy by train. It is located in a busy neighboorhood; however, you don't hear any noise whatsoever once the windows are closed. The AC is also a life-saver in periods of heatwave.
However, there is a major downside : the neighboor next door. She came three times banging at the door and ringing just because we were talking in a medium-tone voice in the kitchen (with no music whatsoever). Once we open the door, she was rude, insulting and she keep threatening to call the police. She is there not only on nights but also during the day, which mean you can't take your breakfast/dinner without her coming and complain (she came yelling at us at around three in the afternoon). If you are with friends or family, it can be really annoying (except if you are all mute).