I'm just back from a trip that involved a transit of FRA - actually on an LH ticket - and had my first experience with the Senator lounge, the one at B26ish.

Awestruck. I showed them my cattle class LH boarding pass and my *Gold card and both Mrs. Milepig and I were immediately admitted to the senator side without question. We were there in the late afternoon and the full dinner buffet was out - India was the theme last week (Yes, they have THEMES). The food was wonderful and plentiful and they were passing around trays of fruity but very alcoholic drinks. There was also very nice champagne and other wines. All I can say is "wow".