I love this show. It became one of my favorite drama from the first moment i watched it and I believe I have re-watched it at least 3 or 4 times since then and I usually don't re watch things.

For a drama to be a 10 for me it isn't that it's perfect no media is perfect. It's how engrossed I was in the story that I didn't notice or care about the faults. And this show just had me from the get go. The story was extremely charming and the relationship of both the main leads and the side characters were well developed and made me really route for them.
The acting was great they got really amazing actors for all the characters.
This show has one of my favorite OST's of all time even if you have no interest in the show I would highly recommend the OST.