Gabriele's place is a true gem! The pictures doesn't do it justice. It's very spacious, clean and cozy. The balcony is just amazing, we ended up spending much more time there than we expected. Sitting there, listening to opera practices while looking at the towers and the medieval rooftops was so nice.
Something worth noting is that the piazza and the street below the bedroom window is very popular among partying students. It could be worth bringing earplugs if you're a light sleeper. It's not so loud with the windows closed though and there is no music, only voices. My fiancé was slightly disturbed but for me it was no problem at all.
Gabriele was a great host! Super helpful and friendly. He was flexible with late arrival and departure and let us store our bags during the last day. He helped us book a taxi for the airport as well. He also gave us many good recommendations for restaurants and bars, we used many of them they were all really good. Food was one of the reasons we came to Bologna and we were not disappointed!