Serena is a very kind, sweet and interesting person, the appartment is really beautiful and the location is simply perfect for those who want to stay in the city centre!
That said, the surroundings were a bit noisy during our stay (bar downstairs - which we didn´t mind since we had a glass of Prosseco there; and reconstruction works going on in the street since early morning - which Serena can´t really influence and might be finished soon, hard to tell).
All in all, I would definitely recommend to stay at interno INDACO when in Bologna!