Uniquely executed, well-developed characters, fantastic acting.

Jung Kyung Ho made me fall in love with Doctor's Son.  Like many of the reviews already said, what a refined, elegant, brooding, and beautiful character!  

Rather than saying the story was well constructed, the pacing of the drama is what stands out.  Each episode built upon the last.  There are stakes, for sure.   There are villains that needed to be taken down.   There are plot twists and lots of secrets.  Instead, there might have been too many plot twists that the twists themselves no longer become surprising at the end.  

But it is the characters that really draw you in.  You love the bromance between Jung Kyung Ho's "Doctor's Son" and Yoon Hyun Min's "Soo."  You are enamored with the love that can only be built with time between Doctor's Son and Kim Yoo Mi's "Lee Jin Sook."  Kim Yoo Mi's acting also added elevated tones to what could have been a very shallow and contrived female character who just looks pretty and sits around on beautiful furniture.  Even the romance, which came out of nowhere as a result of poor writing, became convincing between Jung Kyung Ho and Nam Gyu Ri, due to the tortured, brooding looks by JKH.

Excellent action scenes.  Beautifully shot with fantastic color schemes across the set.  The outfits worn by the characters also highlight their roles.  

The ending made me mad.  Other than that, expect a great ride along with the characters in the drama.  It is truly worth the time to watch!

I watched this in 2017 and I'm still blown away.  So far, have not found any role in dramaland that can replace such a charismatic and complex character.  It'll be awhile until I find the next best drama.