Roberta and her son are excellent hosts. Their apt is very nice and modern even though the building is old. The bed is so comfortable! And yes he rooftop terrace is a good place to have a morning coffee. Roberta gave us an excellent recommendation for dinner and the location is fantastic for visiting the Duomo, the baths, and the squares. There are a lot of stairs to climb to get to the apartment so if you have trouble with stairs it may not be the place for you- but Roberta and her son were happy to help us with our bags!