Excellent apartment with an even better host. We had a view from our balcony of the dome of St Peters which was amazing at night sat with a bottle of wine! It's in a good walkable location to the Vatican & buses stop outside for everything else. Sergio was a top-notch host with valuable information on where to eat & what to see, he was available by phone for any query that arose.
If I have to say anything negative it's that the walls are quite thin, so hope you don't have any noisey roommates. Other than that, very good, would definitely recommend.