Federico's place was one of the better AirBnBs we've stayed in, and we've stayed in many! The location near a VERY busy neighborhood was amazing, and incredibly close to the main areas of Bologna. Despite the activity in the neighborhood, it was very easy to sleep through the noise with the rooms being well isolated (extra sensitive sleepers might want ear plugs, though).
It was immaculate, well equipped, and had an absolutely wonderful outside space - perfect for a Bologna home base. Highly recommended!