Charming place with lovely terrace in a great location. The apartment is old and shows signs of wear and tear, but it is perfectly functional and serves as a great base while exploring Rome.
Bed was comfortable and we slept well, except from the noise of a building being renovated right across the street when we were there. There is not much of sound insulation in such an old apartment, so although it is a rather quiet area, any noises from the street will be heard from inside. The bathroom and kitchen were all in reasonably good shape, and we enjoyed starting each day with a moka on the terrace.
There is public transportation nearby, but we found ourselves walking most of the time. Trastevere does not lack places to eat and drink, and we mostly had good experiences.
Overall a lovely place to stay!