Story-wise, it had so much potential. Being an adaptation, there are plenty of material to go by. I have no problem with many sub-plots as long as the narration good and essence of the story is conveyed. That's not what happened here. The drama itself is convoluted with unnecessary sub-plots. Case in point, what was the dragon prince's purpose in all that? A sacrificial lamb so PK doesn't die? His existence in the drama itself is useless. Second, peddler and her grandson. I know the grandson is really Ma Wang's son, and then? I'd say having the GGG to make the great sage love Seon Mi is genius move but the gravity of it being relevant just sort of faded. And then there's Bu Ja and her entire story. After being possessed by Ah Sa Nyeo her existence just vanished. There were many redeeming points, the comedic strips, the love-line, but boy was that not enough to off-set every horrible thing going on in this drama.

Acting/Cast: As far as the actors go, this cast probably has the best performance and chemistry I've seen in a while. Many viewers (myself included) are kept from dropping the show solely to see an exceptional portrayal from the cast. But even then, the lousy story telling cannot be carried by great acting alone.

Music: The OST of this drama is great. As a music enthusiast myself, I'd put it up to my favorite OST's joining (Scarlet Heart, It's Okay That's Love, Cheese in The Trap, Just Between Lovers, to name a few). Song's where on point. I love it.

Rewatch Value: It's not a drama I'd go for a marathon for. I wont even recommend it to friends for first viewing. That's how bad it had been. After the emotional investment I had for this show, that sloppy ending and lazy story narration was a total slap in the fans faces. So, no rewatching for me.