He is a very good promising young keeper but he is being over rated because he is the new kid on the block. Very good for his age but still immature in some ways which is only natural given that he has just come onto the big scene. Great for Moechengladbach though.
The EuroSport commentary on him in the recent game against Bayern was a bit over the top to put it mildly. Just one example of some over hyping of him but he is good.
Very impressive young keeper, but I can't seen him getting ahead of Neuer, Zieler or Adler (when fit) in the next couple of years at least. Would probably make the squad though considering Adler's woeful injury record