Andrea was great, really quick in replying, his mum who welcomed us was really helpful as we arrived around midnight.
The flat is beautiful as it looks in the pictures, clean and tidy, location is great to visit Bologna. However it's quite noisy, we could hear the cars from early morning and people in the bars just beside the building front door up until 1am (I don't understand he other reviews about being very quiet!). Plus, we were unlucky 'cause there was banging on the roof just above our heads at 7am for 2 hours on a Sunday morning for some works (Andrea told me just the day before). Anyway, that's just a contingent thing that won't happen to you I guess.
It's a shame that there's no wifi (if u don't have an Italian mobile, 3G costs are really high), I'm sure that would make this place just perfect.
That said, I highly recommend this place and would definitely go back there should I return to Bologna.