I dont know about others but i really loved it.. it confused and thrilling me untill end... and for me itz not slow too.. i am not yet watchd seson 2 but this seosn is good for me

As for acting i dont thnk i need to describe cha eun woo s acting.. itz always in high point no... main actress is did well too... as for main actor, he dosnt hve energy and his personality is not matchd to character of van but itz not big problm just ok.. all other actors are good too

Overall i recommended to watch it who like supernatural things...