We had a lovely stay in the apartment:-) the location was perfect! It was close to a lot of tourist places and surrounded by nice restaurants and gelato shop. We took 10-15 min walk to Trevi fountain and Spanish strainers at night and took taxi to Vatican next morning (it cost us only 13euro).
they had a detailed "house manuals and tips" which includes their restaurants recommendations and how to make reservation for major tourist places! They had English instructions how to use washing machine and dish washer.
The only thing slightly bothered us was that some homeless people are living around the building and you see them pretty often and pretty close. (They were totally harmless, but I was little shocked to see someone sleeping on the floor late at night )