We stayed at Casa Luna 4 friends and it was great.
Giada was very good at communicating with us about our check-in and helped us find the place.
Giada was also very attentive during our stay and answered our queries very fast.
The apartment is sparsely furnished but very spacious and it was a nice base for our adventures out into the city. Located very close to the main train/bus station, it was easy to get around.
I would definitely recommend this place for your next trip to Rome.