I and my partner loved staying at this flat in Bologna. It was well-equipped, clean, and in a central location (that is, the main tourist attractions were all just a few minutes of walk away).
The street where the flat is located is indeed noisy and lively at night as there are many local pubs and restaurants around, however, once you close the window you can practically shut out all noise from outside. Also, the bedroom is at the other end of the flat which is much quieter.
Communication with our Airbnb host was clear, Andrea was very helpful when we had questions or any issues (e.g. it took a long time for the shower to drain, Andrea offered to check it, but in the end, we declined his help as it was not a huge issue for us that couldn't wait).
All things said I would definitely recommend staying at this Airbnb.