I will given Berlin credit here — after checking in to our accommodations (took a taxi from the airport), I poked a ticket machine, quickly saw the Union Jack flag and got the machine into English. Couple minutes later we had our 1 week passes in hand. In general I found the system very approachable, using google maps for route planning.
It is ok, but still a far cry from London for example, where you simply hold your card while entering and it automatically gives you the best price for your account. So if you drive around a lot as a tourist you just cap at the weekly price once you reach it.
If you tried that in Germany there would be a legal challenge on the grounds that a system which knows where the user travelled infringes on privacy :D
With the caveat that the cap is always a fixed Monday to Sunday period, so if your stay doesn't align with that, you'll get to pay an additional capping period.
