I really loved this show, the only issue is that was pretty long. It took me a huge while to get through with it. But I really loved the realness that felt in Europe and Eastern Europe. What life was and how this dog eat dog mentality prevail in what was the obscureness of communist Germany. Life always full of spies and paranoia that one day you will be deemed a traitor and shot by some intelligence organization. That feeling was greatly captured by this anime and I think that many that might have not experience how it was back then, it might not feel as familiar to the ones that have been aware of that world. The great cautionary tale that build the second Reich in Germany, out of hardship and mass manipulation of their psychology to reach the ultimate crimes against humanity is what lingers as it could really happen anywhere at any point in time.