There are dramas that have sometimes exceed the novel a few times or changed some settings of the novel, and surpisingly it became better but in this case this is so bad that i am speechless (obviously not since i am writing this long as* paragraph).
I have read the novel and it's way better than the drama. The drama is so slow that i had to watch it in 2x. The male lead has no expression whatsoever, whether he is sad, happy or surprised. The female lead is a little bit off-putting. The older actors are as usual stable and with their characters.
i think they should have stick to one dance type since it's so confusing and messy especially between Korean dance and contemporary dance. My favorite is the ballet.