We spent one night in Paulo's apartment as we were only passing through. It is well located and is only 25 minutes walk from the train station. Most of the route is covered by Bologna's beautiful porticos so if the weather is okay I would recommend walking if you are arriving by train. We loved Paulo's apartment and he was the perfect host. He gave us lots of local food recommendations and even made the reservation for us. We were disappointed
that we couldn't stay in Bologna longer but we will definitely be back.