Charlotte's apartment was absolutely perfect if you're looking for a place away from the regular crowd but in the centre of everything. There are some fantastic local shops such as café Perru and Max & Jo (the barbers). Don't forget the tiny side alley next to Campo di Fiori with a kebab shop and "healthy" pizza shop. Twenty minute's walk can take you to the Vatican, Parthenon, Trevi, or the Colosseum.
Charlotte is a lovely attentive and friendly hostess and always looks out for you. Her flat's temperature is well regulated even in summer with the ability to have great airflow through the house. The bedroom is comfortable and the bed perfectly capable of getting you through the night. It can be warm in the morning with the sun coming in but what are you doing sleeping in in Rome anyway?