Stayed with my girlfriend in Matteo's appartment for an extended weekend and was very happy about our choice :)
The space is very nice, great vibe. Neighbours a bit noisy maybe, but absolutely nothing that kept us awake at night! It is located in the southern part of the heart of Trastevere close to both tram and bus, and 5 min away from Stazione Trastevere where the airport train stops.
Can highly recommend staying here.