I absolutely loved my stay at Carlo's place. It was in a very secure location and I felt safe - very important as I was a solo traveller.
Other guests mentioned mustiness - open the door and run the dehumidifier and it isn't a problem at all!
There is a beautiful park that is less than a block from the apartment. Go there! It is a mini Central Park - have a spritz of cappuccino.
Carlo, Sergio, Lilia and Frederica did all they could to ensure my time in Bologna was special. I was blessed to have chosen this place.