I'm an avid fan of Hwang Mi Ri's manhwa, so yes, I am biased. I've read many of her works, and if you become familiar enough with her story preferences then yes it can become pretty predictable and repetitive.
But lets say you had never read any of her works... or weren't soo quick to pass judgement. I think this manhwa is a must read for everyone.

Story - 8
While I'm not too big on anything fantasy, the story remains pretty realistic except for the beginning part in which Hali's spirit is inside Aram.
I was furiously reading this as soon as I started it. Never did I want to break from it. There were various moments in which proper development between the characters occurred. And, its ability to captivate with various emotions throughout the story... I think it does its job well.

Art - 7
If you're more used to manga than manhwa, then you might think Mi Ri's drawing style is old fashioned or 'bad', but I find her art easy on the eyes. It's pretty good. So I give it a seven.

Character - 8
The characters don't change easily just because of 'love'. I like that the characters stick to they're given traits and hidden emotions and thoughts are slowly revealed as development occurs. I don't feel like I came to like or hate anyone I wasn't supposed to xD

Enjoyment - 10
... very much. I think the 10 explains it.

Overall - 9
I would give this manhwa a 10... but as almost every piece of writing out there, there is room for improvement. That being said I think its fine as it is all things considered :3