I have watched both version (Japanese and Korean) and I love both of them.
Each has its own strength and characters - which is why though the story is the same, it feels totally different.
This version explores more about the human relationship: Hye won's relationship with her mom is explored in depth here, as well as her relationship with friends. It is also more dramatic with the opening part of Hye Won said she's coming back because she's hungry - the first punch of the dramatic flare - I love it!

The difference with the Japanese version (Winter & Spring, Summer & Autumn) is more in the story. Where J version explores more on relationship with nature, the K version is more on the story of mother and daughter. I'm glad the K version shows more of the mother's story and it finishes nicely.

The J version, on the other hand, only shows the tip of the iceberg of Ichiko and mother's relationship and the ending is too abrupt. But what I like about the J version is how calming it is and it shows more on human relationship with nature - which I totally loved. Its quiet and serene atmosphere feels just right to describe living so close to nature, away from the bustling of city life. The best part of the J version is the farming and cooking part, how to use seasonal ingredients to make the best food. Everything is simply made but looks absolutely delicious! This version is totally humbling me down. We take so much for granted from the mother nature and the J version seems to remind us that we should be thankful and not waste so much.

Too bad it's not explored in detail in the K version, but understandable since the K version is one movie whereas J version is made into 2 movies - so they have more freedom to fill in the story.

All in all, totally recommended. Try to watch both versions and see which one suits you the most.