Casa Miranda is the best place to stay in Bologna. The apartment is beautifully decorated, extremely clean and has literally everything you need! Frederico is a fantastic host, as he is not only polite and gives you recommendations, but he is also very accommodating and his airport shuttle service is very convenient. The location is quite good (supermarket and bakery within a minute walking, city center within 20 minutes). We'd definitely chose this place next time we come to Bologna.