Production is superb. Great locations or setting; high quality venues. Excellent actors with good acting. Quality or top notch actors. However, script and screenplay could have been improved. It has the potential of being a quality rather top quality drama.
One of the issues (among many?) is:
As seems typical of Korean Drama, has difficulty when it comes to portraying or rather establishing love connection between ML and FL. Its either too shallow or done the shortcut way - thereby depriving emotion or drama into the romance or love between ML and FL. Its like, they saw each other - voila - they are on already........