So to my question:
I am planning to take CNL from Berlin to Dusseldorf around a week from now.
How are the discount options? I'm thinking of buying a BahnCard 50 if no good other discounts are available.
How comfortable are the 4-bed cabins if compared to the "luxury" single?
I can easily get a shower and brekkie in Dusseldorf before my meeting so this is not a decisive issue. More interested in safety and sleeping comfort. I'm very used to sleeping in trains since a kid but also a rather tall person.
Is the breakfast served in CNL usually good and worth paying for?