If you think you have any idea what you're in for, you're wrong. When my friend recommended this show to me, she did not give me any details as to what the plot was and now that I have seen both seasons, I cannot thank her enough. The first few episodes are very hard to understand and it will take you some time to decipher the plot. However, once you are drawn in, there is no going out. The concept is so unique and the story develops so intensely, you will be at the edge of your seat.
The show is beautifully shot. There is a superb level of consistency in the content and writing, which many shows fail at even today. Please do not watch it in English. Put your education to use and follow the subtitles. The cast is brilliant and whoever the casting director is, needs a serious raise.
Having said all this, I cannot wait for season 3.