I love this place – I'll definitely stay again, next time I have an overnight at FCO.
The staff is wonderful: every person I met was friendly, professional, competent, efficient, etc.
The rooms are newly renovated, comfortable, quiet, and very clean. The shower in my room was luxurious.
Breakfast was wonderful – much better than I expected. Lots of great choices: eggs, bacon, charcuterie, fresh baked pastries, cereals, fresh squeezed juices and a coffee bar with barista.
The neighborhood is great, almost suburban: within 2 blocks of the hotel there are dining options, a Conad supermarket, and other shops.
I had a little difficulty catching the shuttle from FCO to the hotel, but that's probably on me. The staff at the hotel was very helpful getting me there.
Compared to the other choices near FCO, Rome Airport Hotel Fiumicino is a real bargain!