we loved to stay at this place. it is comfortable, close to the city center and very well equipped. we liked especially the fact that the kitchen has a lot of utensils.
the area is not very touristy, so we were able to make some authentic Italian experiences (spending time in the parks, going to Testacio market, attending concerts at Village Celimontana for free, drinking coffee at the bars in the neighborhood ...). in a walking distance of 20-30 min you get to many sights. there is also public transport close to the flat, which we used for longer distances (google maps helped us with the routes and locations).
if there are any problems, Maria Augusta is available and acts very fast.
we definetely recommend this place!