Our stay at Simona's went very well. It is a good base from which we enjoyed Rome.
It is within easy reach of everything with buses 5 mins away, and the Metro another 10. The area is fairly out of the tourist grounds, a nice mix of office, retail (delis, organic shop & anything else) and residential where we always felt safe and welcome.
It is just outside the ZTL, so can be driven to by car.
The flat is compact, but very comfortable, so we could relax after longs days spent discovering the city.