My wife and I stayed at Paolo's b&b for three nights. Room was great, very clean and well kept. The bed was actually very comfortable. We had a private bathroom and the room faced into the center of the building so it was very quiet (though two of the other rooms were facing the street). The unit was equipped with AC, which was very nice especially one of the nights. We didn't make use of the breakfast, but some basic foods were provided. The wifi signal was very weak and only worked when we sat next to our door, but we made it work.
Location is great for those who don't mind walking. It is a little out of the way for some of the central sights, but there are many buses that stop close by. Note that the metro stops running late at night so the bus system is helpful to know. Once you get into the central district, everyone is walking anyway, so this was not a negative for us.
Paolo was warm, spoke good English, and had an interesting history with the building. He lives in the building but the b&b is in a separate unit that was converted to host travelers. Therefore, he was pretty hands off, but he was helpful in making phone calls and reservations for us whenever we asked. In that sense, he was very accommodating.
Overall, recommended and a great experience.