Hi,
Wife and I will have 6-hour layover in FRA in August.
Flying LH but in Economy (

), so I guess we can't access the LH FCT (or FCL).
Questions:
1. We have Lounge Club passes. Is the LuxxLounge (Terminal 1) decent (one poster said it was not).
2. Should we venture out of the airport and, if so, ...
a. Do the 3-hour Porsche rental or
b. Get the driver to take us for a tour or
c. Take the public transportation into and out of the City?
3. Are there any reliable kosher options in Frankfurt at this point? (I have read the news about Rabbi Klein).
Thanks in advance.