This is my favorite korean drama by far. However I cannot recommend if you are not korean or not interested in korea, or if you don't like the main cast. At episode 20, you will cry. I never cry when I watch movies or tv shows but this was the first one that I cried, a lot. Acting is as expected from veteran actors and from the start to end it is so immersive. You feel like you are in their shoes. The only problem with this drama is that it is longer than it should have been, making it hard to watch twice, like most dramas. But I will watch it again for sure in a couple of years.