This apartment is fantastic, super comfortable as well as being in a great location. Right outside the street access to the building you are in one of the cobblestoned streets of Trastevere, just around the corner one of the pedestrian bridges over the Tiber river. We walked everywhere, from Vatican, Colloseum, Trevi fountain etc but there is also public transport. Sweet has a very handy list of things to see and do as well as location for laundromat, supermarket etc.
We would thoroughly recommend this apartment.