Location of the apartment was great and we found free parking on the next street for all three days we were there. As other reviewers have mentioned, there are three flights of stairs up to the door which didn't bother us but may be an issue for anyone with problems with mobility.
The apartment itself was spacious with two bathrooms and a new kitchen. The area of Trastevere was convenient for all the sights of Rome and have heaps of great restaurants within walking distance.