My wife and I stayed in Alessandro's apartment for three nights and it was a great place to see the sights of Rome from. Alessandro was very welcoming and had great communication with us before our stay. He provided drinks when we arrived, which were very welcome on a surprisingly warm
October day!
His place has everything you need and is close to both the main train station, as well as the colosseum. If you'd like to take a bus tour, the stop is just by the apartment.
We would recommend Alessandro and his flat and would stay there again.