We've spent 4 days in Elena's apartment. The apt is centrally located yet really quiet. It's not very big but more than sufficient for 2 people and the balcony is lovely. Elena is very friendly and a perfect host, she was really flexible with the check in and check out times and also made us a map with all the nice restaurants and osteria's in Bologna. Also the apt was really clean. I can certainly recommend it and would definitely stay there again if I were to stay in Bologna.
Monique