We really enjoyed our stay in beautiful Bologna! And Mattias apartment is right in the heart of it! So of course this isn't a quiet place, so if you have a light sleep consider bringing some earplugs.
Important: if you come by car, make sure to get a permit for the traffic limited zone (ZTL). Without it you can't come near the apartment without paying 100€ for entering the zone without permission.
Enjoy your stay, Mattia is really friendly and reacts within a few minutes. Come visit Bologna!