This was a wonderful choice and the accommodations and the location were perfect. It is in the lovely old part of the city, yet safe behind iron gates. It was very clean, convenient and quiet. Carlo's father was waiting on the street to meet me when I arrived and I followed his excellent suggestions for restaurants very close to the apartment. There is a fully equipped kitchen if you want to cook yourself.
I also took advantage of their personal transport to the airport for my return flight - very convenient and reasonably priced.
If you stay in Carol's flat, it will be an important part of your wonderful memories of Bologna.