The Nest is one fabulous apartment in the very center! You are just walking out of the building and you are on the Main Street- close to all bars, restaurants and historical center.
Arianna and her husband were super nice to us, even tho we arrived late on Friday. Really clean and modern studio we comfortably stayed 4 people. Definitely a place which is worth staying at when visiting bologna!
Oh, as well there is a parking right next to it so you can just park your car there (on quite good price) and enjoy the long walks around the city.