Vittorio' place in Trastevere is really nice located just round a corner, next to a little square with a small church and a local bar with great local life. The apartment is very cozy, modern, well organized and decorated. Close to everything in Trastevere, the Jewish quarter and if you don't want to take the bus or tramp it is an easy 25 minutes walk to Colosseum, Forum etc.
Highly recommended ;-)