Barbara's place is a great little apartment in the heart of Bologna, walking distance from all the major tourist attractions, museums, lots of restaurants and shopping, and the central train station (which has a convenient bus to/from the airport). Check-in was straightforward and Barbara was friendly + easy to communicate with. The space itself is rather small and would be uncomfortable for more than 1-2 people. The bed is big and very cozy; it's lofted on a second-floor that is reached by a ladder, which is safe but not perhaps the most convenient for anyone older or with difficulty moving. There is a heater which works very well, but mostly directs heat towards this lofted area. The rest of the apartment was frequently cold (concrete floors). The kitchen is very simple, but has all of the basics.
Our only major issue during the stay was with the hot water for the shower. When we arrived, Barbara warned us (correctly) to be careful because the water gets quite hot. Unfortunately, we had issues getting any hot water for the first few days; the water heater was turned off when we arrived and seemed to only hold enough in the tank for short showers. We were able to deal with this once we understood the problem, but it was annoying.