For our trip to Bologna we booked the apartment of Massimo and Roberta, which convienently was at only 15-20 minutes from the main railway station. Massimo and Roberta were at the apartment to greet us and show us around, while also recommending some local hotspots. They don't speak English, but they use a translator and, combining this with some understanding of Italian, communicating is very easy. They are incredibly kind people and have a very beautiful apartment, which is only 6 minutes away from the main tourist attractions in Bologna.
Honestly, if you want to go to Bologna, look no further than this apartment, and book it before someone else books it!