GENERAL SATISFACTION: We were there for an entire week and everything was as expected, and we were very happy.
NEIGHBOURHOOD: Although Trastevere is known for its party life, we did not hear any noise, and the neighbourhood was very calm.
DOWNSIDE: The only downside was that it is relatively dark in the apartment all day since little sunlight comes in (but that was ok with us since we spent the days outside anyway, and only a few evenings in).
COMMUNICATION: Some small questions/queries we had were answered by Lele immediately, and to our full satisfaction (on WhatsApp). Lele booked a taxi service for us from the Airport to the apartment (and again from the apartment to the Airport), which was very reliable and took us from door to door.