Carlo was a great host. He communicated well in advance of the stay to clarify how to arrive, and provided good information about the city once I got there. The apartment's location is great: one block from subway, central but not in heavily tourist area, walking distance to major sites (Santa Maria Maggiore, San Giovanni, Colosseum), good selection of restaurants / cafes nearby. He was very friendly without being overbearing, and offered daily coffee, snacks and a nice selection of fruit. The room was simple and pleasant, and the building is extremely safe. Excellent value stay.