We had a great stay and felt very home at Alonso's place, everything just as we wished and even more. The espresso machine made us feel really home!
As already mentioned, just 2' walk to Vatican (one may see the line from the window..), minutes from metro and buses, plenty of restaurants and minimarkets.
Direct bus station to Fiumicino Airport at 15' walk or 5-6' by 492 bus line nearby!
Highly recommended!