Great place. Not far from many famous Rome places. Everything is walking distsnce, and while you wall you can explore the city. Nearby are supermarkets so you can grab something to eat anytime, and right next to apartment you can always get fresh water to fill up your travel bottle before the walk to next destination.
The apartment is warm and street outside is away from main street so its calm and silent during night.
Only yes, the staircase is bit narrow but we got used to it by second day.
Also the SITbus stop that takes you right to FCO airport (45min drive with one stop in between) is 15 min walking distance from apartment so its really easy and simple to get from/to FCO airport.