See different people have different tastes as far as dramas are concerned. I am writing this review purely based on my emotions, life ethics and rationality..
To be honest this is an over rated drama. It doesn't deserve 8.1 but a 6 or 7 may be. It's not like I won't recommend to watch it but definitely not if you have other better options. Still I feel you can learn quite a lot from the drama such as unselfish love, compassion, the importance of rejection and criticism in achieving success, selfish love, foolish love and of course 'how to throw away a good story into dump'. May be they have left a lot of holes in the story line to release the 2 part but guys there a lot of holes believe me.. lastly I would say that though I didn't like the show after episode no10 but seo dal me ending up with nam do San seems more realistic in real life as well. And for jipiyong fans I would say he deserves more than seo dal me. She is not good enough for Jipiyong even if she is the lead in the story.. she didn't even had the courtesy to ask Jipiyoung anything about his past life even after knowing that it was his letters which kept her alive and motivated during all those difficult years..Hence I am happy for Jipiyoung.. Read the reviews having lesser stars to know about the other deficiencies..