Lets be honest.
Korean television shows are 99% this: Two people who first don't like each other falls in love. The end.
This, is a different beast however.
The greatest part of this show is the smaller stories told in each episode. Regret, resentment, grief, Losing a loved one, losing a parent, losing a child.
And it hits you hard.
It's been a while since I've cried this much.
The actors are really really good. Everything about the production is top notch (for a television budget).
However the strength of the show is the television format. This would have made a good movie, but the longer runtime allows it to become something great. It allows it to tell not just one story, but multiple stories woven together as well as having a main story as it's core.
It's really really really well written and acted out brilliantly. Baek Hyun-joo as Chang Hwa-mo (the restaurant owner) gave one of the most believable performances I've ever seen.
The only reason I'm not giving this 10/10 is this: It's not long enough.
Unlike shows like 'The sopranos' that ran for over 6 season. This is a stand-alone single season with 16 episodes. That is still over 10 hours and probably one of the most rewarding binges I've sat through for a long time.
The first episode however is a little bit weak. So if you're reading all of the positive reviews here and start watching without feeling convinced. Do yourself a favor and keep watching, it gets better and better. And better.