We highly recommend Pier and Anto's apartment for a 2-person stay in Bologna.
In terms of location it's a convenient 10-minute stroll into the city centre; there are supermarkets and cafes very nearby; and being at the rear of the building, it gets no road noise.
The apartment itself is a beautiful sanctuary to return to after a day of sightseeing in the summer heat! The garden is a peaceful, shaded space to enjoy, the kitchen is well equipped, the bed is comfortable, the bathroom is good, and we were very grateful for the air con! There was plenty of room for the 2 of us.
Lastly, Pier and Anto's hospitality and communication were the best I've ever had through Airbnb -- including their communication, check in & welcome (with wine and cheese!), and their excellent local recommendations. We loved Bologna and would not hesitate to return to Giardino Segreto!