First off, let me say Barbara's apartment is very interesting and unique. The multi-level design uses the space impressively. The materials and integration of windows and light into the space were very cool. And I guess that if I was going to use one word to describe it, it was "cool" as in "fashionably attractive and impressive". It was also well located being only a few minutes walk from Bologna's Piazza Maggiore and a short ride to the train station. For my American friends, a point to note, a third floor apartment in Europe, would be described as a 4th floor walk-up in the US. Combine that with various levels that make up the apartment and you have a bunch of stairs to climb. This is called out in the description.
On a down note, we had the misfortune of having the ac unit for the apartment became inoperable the day before we arrived. Barbara had setup a portable AC unit in the living room and fans in the bedrooms, but they were insufficient to keep the place cool. The temperature in the apartment ranged from 26+ Celsius in the main bedroom to 2-3 degrees or more warmer in the higher bedrooms, when you arrived back in the apartment after being out for the day. We were actually lucky that the weather was fairly mild during our stay, otherwise we would have been very uncomfortable. Because the AC was an important factor for us in choosing our place in Bologna, we were clearly disappointed that it was not working. Since Bologna can get hot in the summer, if you are planning a stay during that time period, I would recommend that you confirm that the modern refrigeration is working before booking.