I visited Rome with two daughters. We stayed in Giulia's place very comfortable. The apartment is really located in wonderful place in Trastevere, but not in noisy place. The apartment is well-furnished and equipped with everything one may needed (including a toaster, coffee-express and hair-dryer).
The apartment has two air-conditioners which allow to heat the room well in cooler days and night (in my case) and cool the room in the hot summer days.
Giulia was very friendly and helpful, and met us while check-in.
I really recommend this place.
Lukasz