We stayed at Alessandra & Susanna’s place for 5 nights the first week of September 2018. While I didn’t meet them, they were very responsive to messages and were very easy to communicate with throughout the process. The apartment was exactly as advertised and was clean and comfortable - we really enjoyed our stay in Bologna!
The only thing that makes this a 4 star experience rather than 5 is that the building is under fairly extreme construction (scaffolding around the entire building) and this was not disclosed to us before we arrived. This meant that there were very loud construction noises each morning beginning around 7:30/8am, as well as workers all around the apartment (could see in windows, etc), so it was not very private during the day. This should be disclosed to guests ahead of time, since I could see this being something that would justify a discount and/or impact someone’s choice to stay at Alessandra and Susanna’s place.