The first 7 or so episodes were really special, out of this world good romance, beautiful cinematography,excellent acting performances by the main pair and annoying, but tolerable side characters. Unfortunately by the time we reached the last episode the writers ruined almost everything & also some really tedious & annoying sub-plots were used.
So in my opinion the best way to watch this is to watch the first 9 episodes & then jump straight to 16. ~~ That way you all will see something truly remarkable.

My disappointment in episodes 11 > 15 is comparable to what I felt watching Jealousy Incarnate, when they all lived in the same apartment...

Still I will remember this show for a long time to come, rewatching the first 9 episodes is something I will probably do, when the pain of what followed has become a faint memory. Objectively I should probably give this something like 4-5 stars, but the first half of the show is good to the point that it's insane, hence the 8 stars rating..


edit: It's been three years and finally I have decided to give this one another go. I followed my own advice, watched the first 9 episodes followed by the finale. My attempt to relive the magic has mostly failed. Probably it does not help that I've seen One Spring Night 3 times.. In my review I said "tolerable side characters", but I had an extremely hard time to tolerate them the second time around, especially the horrible horrible mom and the ex. I have some qualms about ML's sister as well, but I'm sure most of it is bias having seen the actress in EVERYTHING.