The flat is - admittedly - quite loud, but a) we knew that before and b) we got used to it quickly. We slept really well in the very comfortable bed! We loved that the apartment is so close to Rome's center and we walked almost our entire sightseeing tours. Only once did we get too tired to return by foot so we hopped on a bus - the flat is easy to reach by public transport.
Franco was a great host, making sure that everything was fine before, during and after our stay.
The flat has a nice old atmosphere, is tastefully decorated and very clean. We particularly enjoyed stepping out of the front door straight onto the street and into the Café next door!