The location of the place is 10 out of 10 - between Pantheon and the Jewish Quarter, all the major sights within walking distance.
Two "bedrooms" (each on kind of a separate level with stairs leading to it, see the pictures), two bathrooms, great for 4 people (can have up to 6, but less comfortable), decent kitchen, very nice dining area.
But again - location is the main selling point - we stayed in Rome for a week and didn't need to use public transportation even once :)