Refreshment, television, free Internet access, up-to-date flight information, showers and other possibilities await you (depending on availability at the particular lounge).
Just sign up with your Visa Gold card in the Airport Companion Europe app, and you will automatically gain membership in DragonPass free of charge (normally 99 USD). At the airport the mobile app will guide you directly to the lounge and generate QR code for entry.
The fee for each entry to a lounge is €26 and you pay it directly from your card in the app. You can purchase entries also for other persons at the same price.