An absolutely wonderful apartment in a great location.
We opted to take a taxi from the airport which cost about €17.

Paola greeted us and showed us around the apartment, which is quite simply gorgeous. There is just about everything you need already within the apartment, from food in the fridge to a fantastic array of toiletries (great quality ones at that!). The décor is fabulous, there's plenty of storage in the closet room, and the tower fan was more than sufficient to make the room bearable on hot and humid June nights!
The park that Paola recommends just up the road is well worth a visit and we spent two wonderful (nearly full) days catching the rays there. It's a busy park and popular with the locals, and there are two very reasonable cafes on site.
10 minutes walk to Piazza Maggiore (also where the TIC is) and the market area. We picked a restaurant across the other side of the city, on two nights out of the 4 we stayed, and we were still able to walk there in under 30 minutes.
Paola's a wonderful host, with great communication skills, and when we return to Bologna we shall definitely be looking at this apartment again.