Once you start watching it you won't be able to stop , The amount of scope it has is unrivaled by any other drama like It has everything : heartbreak, angst , romance ,betrayal , unpredictable story line , the CGI and the visual effects are top notch , the screenplay and the cinematography is of high quality , it has incredibly high production values with excellent costumes and set design and the Osts are pretty satisfying to hear .
there's a strong cast of actors who put on tremendously great performances .you'll hate some characters to the point you want them to die and you'll love some characters so much that you wish they should live forever but they'll die suddenly , the chemistry between all couples is insane.
I highly recommend it , it’s one of the best fantasy dramas to have ever been produced .