Fiamma and her mother were the most gracious of hosts. Fiamma made sure we had everything we needed, answered all of our numerous questions, suggested many restaurants and tours. She always answered quickly. As for the appartement, it's super close to the Vatican, to Castel sant Angelo, to the Tiber river. We basically walked everywhere, but sometimes took public transportation which picks you up right behind the appartement and drops you off right next to it.
Great place!