Alessandra's place is 100% recomendable. The house was great: everything was clean and all the furniture was quite good.
Regarding the communication with the host I can say she was available for us all the time and she and Carlo (her co-host) were really kind with us.
The house has a good location.10 mins to the city centre walking. Just I wanted to raise that around 12-1 in the night the 3 days that we stayed there were a lot of people along the street. So it was a little bit noisy. It was not for a long time, but it happened the 3 days.
In general terms I recommend this place. If i could come back to Bologna, probably I would book at Alessandra's.