Costantino is a great host, helpful and responsive the whole time. He offered tips on restaurants nearby (there are quite a lot of decent restaurants in the neighborhood). His apartment is well located, close to public transport within very short walking distance. It is also pretty close to both the main train station and some of the major tourist spots, all within walking distance too. Inside the apartment, the provisions are exactly the same as his description, very clean and tidy. The building is located in a quiet street, great for a good night sleep undisturbed. Definitely recommend Costantino's place to leisure travellers to Rome, especially single travellers, or those with one companion.