I really wanted to love Goblin but I just couldn`t. It had a great intro and the cinematography was amazing, it has great actors and the chemistry between the male actors was absolutely flawless and also half the reason I bothered finishing this drama. But for a drama to be good the story has to be somewhat good too.
The writing could have been so much better, it`s a story about grim reapers, ghosts, goblins, and gods who live unnoticed by normal humans. Many of the side stories were good, but it seemed like the writers put so little effort into the main story compared to the side stories and how much effort it was put into the cinematography. I think the romance between the main couple was good, it didn`t care about the age difference it`s just that it was boring to watch compared to the secondary couple.

Conclusion; I think this drama is overrated and could`ve been so much better it had great actors, cinematography, and music but the story just dragged the drama so much down. It`s not a terrible drama I have watched a lot worse but it`s not a great drama either.