The apartment is located in a great area of Rome--the hip and formerly bohemian Trastevere. Also, the apartment complex is located only a stones throw (literally 20 or so feet) from a great neighborhood market, not to mention that the apartment is also very close to many public transit lines.
However, the apartment itself is in a basement and gets especially damp. Also, the furnishings are not especially good--the bed, in particular, was somewhat uncomfortable.
Though the apartment left some to be desired, its great location between Vatican City and the ancient parts of Rome make it worth consideration.