As you might expect the train is quite reliable and certainly on time. Surprisingly no internet wifi option.
Local trains in Holland seems to have provided it but not so on inter EU travel.
Arrived at Berlin Hauptbahnof and got on the Berlin transit, which consists of Sbahn(elevated)
Ubahn(subway) and buses.
We got on the Sbahn and after a few stops swiched downstairs to the dimly lit ubahn with the crazy color upholstery-see photo.
One stop away from Hermannplatz where we had to get off two men where checking tickets. Confidant mine was legit since I purchased them not from a mechanical dispenser but rather from someone in the official office. I told her where we wanted to go and she gave me two tickets. I showed them to the two undercover transit thugs. They said these were not good and demanded we leave the car and come with them. They were quite insistent demanding ID and passport.
On the platform they said we are to pay them first 14€ each or pay "the bank" 17.
My adrelinin started flowing which when it takes over I can be unpredictable. I argued first in English and then in German. He finally waved his hand dismissing us returning the passports. The agents then turned their attention to a young Black woman who was apologizing in German, while they wrote her out a fine.