It is the Lufthansa lounge, although the external signage is now all star alliance. It still has a F section available to *Gs. Food varies according to time of day and which airline is departing. But usually sandwiches and the usual snacks. In the F side I recall they also had a cheese board and Lanson Champagne.
Airport has free wifi that defaults back to the airport homepage periodically.
Not a great lounge but not bad place to wait for your flight. Hope this helps.