My wife and I stayed at Francesco's for one night and it was a very positive experience.
The apartment is in the center -within walking distance from all the major attractions and restaurants. The station is a few minutes by bus. A cab ride from there set us back only 11 euros.
The apartment retains all the traditional Bolognese charm. It sits in a tiny alley round the corner from an arch-covered sidewalk. The bedroom's balcony overlooks a quiet-inspiring courtyard. The interior design is artsy and tasteful. The room is spacious. The only inconvenience is a floor of stairs to climb.
Francesco is welcoming. He greeted us at the door and we immediately struck up excellent conversation. He is also a stickler for cleaning. The bathroom is cleaned thrice a day. You are encouraged to keep it so: you wipe the shower's walls dry after use. A huge plus is the opportunity to check-in after 10pm, rare in AirBnBs. It comes in handy if you want to arrive late.
We'll definitely go back here if we are in Bologna again.