We stayed in the "Calpurnia House close to Colosseum" in October '14. This was the nicest accommodation of our Europe trip. It is walking distance from the Colosseum. The hosts were helpful. Claudia speaks English and was available for questions. The apartment is large. It is clean and in a good neighborhood. The bed was comfortable. The bathroom is nice. They recommended a tour guide who ended up being great. They also arranged transportation to the airport for us. There might have been a slight mildew smell when we opened the door but it was indiscernible once inside.