The stay with Carla, her husband was absolutely perfect!
My girlfriend and me stayed for four days in late February for our first visit to Bologna. Carla is a great host (we even got delicious cake for breakfast :)) and tried to make our stay as comfortable as possible and she is just a lovely person to get to know to.
The appartment below the roof is really cozy, has it's own bath and is private as well. A super market is just a 50 meters from the house, the bus station a 2-minute walk and the bus into the city centre rides each 20 minutes. Even if you miss the last bus around midnight because you forgot about time in one of the many cozy bars back to your appartment - a walk is possible :D
Please go there, get to know Carla and her family and have a gorgeous time in Bologna!