The first time I saw the metro plan, I “felt bad”. It was hard to imagine that it would be possible to figure it out. I once asked about the system for making it easier to remember, but no one answer to this question.
Now everything is clear, just work the rule “you need to do it yourself once, to understand everything”. However, without the Internet, it is sometimes “sad” and difficult to find the fastest way.
A beginner may be confused by what is often shown S-Bahn (ground trains) and U-Bahn (Metro) on the same diagram together. From this, it seems that the metro system is endless. But when the plans for ground and underground transport are divided, when you know that all trains go through the central station Hauptbahnhof, then everything is fine. (in addition, you still need to know about different “distance circles” in order to buy the right ticket).
The stations look quite the same, but there are a lot of them. Therefore, traveling in the subway is very convenient. With this system, you can see the whole city easily. It saves time and energy. Also, you will have a wonderful training of the German language when you would try to buy the right ticket.
Anna