I loved Bologna - my favorite city in Italy. Eugenio was so friendly and really helped me find the best spots to visit in Bologna. He sat down with me and showed me a map where he circled locations and talked to me about some history of the city. I have never stayed in a B&B before, and I was really looking for a clean, nice place to stay. B&B Anna was perfect for this purpose and I really did enjoy my stay. I'd rank it the top 10% of places I stayed in Italy.
Reading some other reviews, it seems like a few people were disappointed that it wasn't more of a B&B. I guess it is not like a traditional B&B experience and is more of an apartment. You don't really interact with Eugenio and his wife (she was very pregnant while I was there!) unless you seek them out. For me, this was fine. I was out exploring Bologna pretty much every waking hour of my day.
If you are looking to have big meals with a family then this isn't your place. BUT if you want a clean, centrally located place to stay with helpful hosts at a great price then B&B Anna is your place!