Fabio's place is very centrally located for a good price. Right down the street from Vatican city and we even walked to most locations through our stay such as the colloseum and pantheon. Also very close to a metro if you want to cut down on the walking. The flat was good for what we needed and had some great restaurants nearby away from the tourist traps. He was very helpful in picking us up from the airport at a small fee and gave us lots of information about the area and places to avoid at night.