Nicolettas place is really lovely. Nicoletta is very welcoming, communicative and helpful. She has a cat, Miro, (who is adorable) so this place wouldn't suit anyone allergic in any way.
It is a 10 mins walk to the main square and it feels very safe. It has everything you need, but I spend most meals eating out.
A small downfall was that there was lots of noise all night long on Thursday, Friday and Saturday from outside the flat which made it hard to sleep. However, I really did enjoy my stay here and recommend it to anyone looking for a place in Bologna.