haa

I took the standard German tour once during a long layover. I could understand some of what they said with my limited German skills, the guide information was quite basic and oriented towards non-aviation people ("this is the business flight area", "see plane being refueled", "here is the fire stration", "this is cargo terminal", etc.).

I have since recommended the FRA tour to people even if they don't speak much/any German, as most FTers know enough about aviation anyway so no guidance is really needed, we know what a 747 is ;-) The tour is pretty good even if you just look around by yourself.