These are very similar to first class airplane seats lined up like an airplane in large rooms on the ferry. These seats are large and roomy, with ample space to fully extend the foot rest and they can be very comfortable for sleeping.

Both deck ticket holders and airline-style seat passengers share the same public bathrooms.

The ferries in Greece exist to accommodate passengers and to transport goods to and from the islands. As such, the bulk of their hull is dedicated to fitting lots and lots of cars and trucks. Out of ten decks, five or six would be garages. You will pay a ticket for your vehicle and for each passenger, including the driver.

Keep in mind that in heavy weather the ferries are not allowed to sail. If you have to catch a flight out of Athens, plan your return ferry trip a couple of days earlier so you don't have to worry about it if your ferry ride gets delayed. Such heavy weather that can delay the largest ferries in the summer in Greece is rare but it does happen.