First-class seating is more spacious, with fewer seats per compartment, and usually more quiet. There is more room for luggage and it will generally be less crowded as most passengers typically travel in second class. First-class amenities usually include laptop connection plugs, power outlets, complimentary soft drinks, free newspapers, leather seats, and/or meals.
There are benefits on overnight trains as well; first-class passengers are usually allocated a single or double sleeper compartment, while those in second class may be required to occupy couchettes with up to six people per compartment.
NOTE: If you have purchased a First Class Eurail pass you must purchase first-class seat reservations.