I've watched this drama about 10 times and continue to watch my favorite parts.
They have other versions, Thai and Turkish. This is the best version.
The story, acting, music, etc... everything is a 11/10. I don't speak the language, but I have all the songs on my playlist and listen to them as I drive to work.
Don't give it a second thought, just watch it, you'll have no regrets.
Fell in love with both the ML and FL, have watched a few more dramas with the ML. and his movie PS is absolutely a must watch also.