@kjevelyn, you will find that most people in Western Germany and most younger people in Eastern Germany have conversational English, so surviving is easy, but if you speak very little German, you will probably socialize mostly with other foreign students and not find so many opportunities to broaden your mind. Carefully consider what PPs have said about the lack of shiny facilities, housing, handholding, advising…it is hard to wrap your mind around how different systems can be who appear to have the same origin and purpose.