I ignored the low star rating and decided to watch this series based on the good reviews.
The bad points first. The story line. The first 5 episodes weren't great and the male lead character, Jang Seon Kyul was pretty unlikeable, you need a glimmer of hope even in the beginning. The ending really let it down the most. Firstly the stupid thought process of the leading lady, Gil Oh Sol and her father drove me nuts and as is so often with these dramas, a lot of time is wasted not saying how they feel. My pet hate is when everything is only resolved in the last few minutes of the series.
On the positive side, the Jang Seon Kyul character improved drastically as the series progressed and I ended up really liking him by the end, even more so than Oh Sol who was a lovely character for the most part (except the last few episodes). The supporting characters were all great and I really enjoyed episodes 8-14. Still worth watching but could have been so much better.