For the 2nd year in a row, the Leonardo da Vinci-Fiumicino Airport has been nominated the best airport in Europe for the quality of services offered, by ACI,

…an international association that measures, through passenger interviews, the quality perceived in 300 airports with more than 40 million passengers annually.
The ‘Best Airport Award’ was assigned to the Roman airport. A panel of aviation industry experts, including representatives from the European Commission, Eurocontrol, the European Civil Aviation Conference (ECAC)
…and European Travel Commission, were called to judge on the performance of the airports. Finalists included Barcelona – El Prat, Copenaghen, Heathrow and Oslo.
Among the services most appreciated by passengers at Fiumicino are the electronic checkpoints for the automatic control of passports (available for over six million travelers); the general comfort of the airport;
…the cleanliness of the terminals and toilets; the clarity of information for the public; the courtesy of the airport staff; and the speed of the security checks.