Gemma's place is amazing. Everything is within walking distance: The pantheon is literally down the street, there is a supermarket nearby, you can walk to Vatican City, Altare della Patria, the Colosseum, Palatino, the train station, Trevi fountain, Piazza Navona... It's a great spot. The flat is bright and happy, and has everything you need, and Gemma was very helpful and accommodating.