Paolo was a warm, welcoming and helpful host - he was friendly and happy to answer all our questions (including the best place to get gelatto). The flat is lovely: good kitchen, good shower, clean and tidy, with a stock of coffee and biscuits. It's a great location for exploring the city by foot. There was some slight noise in the evenings at the weekend, but not much at all - light sleepers (like me) might want ear plugs, though. If you haven't been to Bologna before, be aware that Paolo will need your personal details to register you as a guest of the city.