For 1W lounge in the Schengen area (terminal B), there seemed to be only one option: Mosaic lounge operated by the airport, located upstairs.
Not much to say. Coffee machine was broken, tasteless sandwiches filled with raw tomatoes and even those were over most of the time. Nice collection of bottles, but no self service. No view.
Probably better option would have been a cappuccino and panini downstairs.