Federica's apartment is located in the center of Rome, 2 minutes walking from Piazza Navona. The location is great, especially if it's your first time visiting Rome, cause you're able to visit most of the major sights by foot. We used public transport only for the Colosseum and Villa Borghese. Just keep in mind that the con of this is sometimes the noise during night-time, mostly on Friday and Saturday when all the nearby restaurants are full till late.
The apartment is very clean and spacious but tall people may have difficulty because of the low ceiling
in some areas of the apartment. Overall, I definitely recommend Federica's apartment!