We really enjoyed our stay in Sonia's place overlooking the Campo de' Fiori. The apartment was comfortable and clean, communication was seamless, and the location can't be beat! We loved looking out over the square and watching the bustle of the market during the day and the nightlife after dark, not to mention having easy access to both of those right down the stairs (and if you're worried about noise, don't be - the sound proof windows in the apartment work quite impressively).