Federico's apartment is an absolute steal. The location is unbeatable, and the apartment is beautiful, well-lit, and looks out over the Tiber on the front and a private garden of the Palazzo Spada in the rear. Note that there is a fee for late check-in (30 euro or 50 euro depending on how late you arrive). After we arrived, we changed our plans to stay here longer, and Federico was amenable to our changes. We would absolutely stay here again or recommend it to friends.