I loved how this series showed people in different historical settings / over time, and within their life and family context.

I like that they address difficult topics such as being a foreigner/immigrant and how it affects you when you first move away from your home country, how these things change over time and how they change you as a person in relation to others from your home country and to yourself as well as to the new country.
Then it is interesting in the storyline how they make it a recurring thing with the younger generation also going abroad and their experience being very different but also similar. And then of course the topic of Japanese colonial rule in Korea was also a big part in the series - that adds an extra layer of complexity and depth.

I like that there is a strong female character in the centre of this and that we see her at an old age too!

Also, it is visually done very very well!!