Personally, I'm really enjoying it! Get past the first couple of eps the plot really picks up along with a good pace. U can develop a lot of affection for the MLs personalities cuz JH portrays them so well, i always get blown away by his acting. The FL is fine too, she's not the most expressive but I know she's an upcoming actress so give her some space.
The plots alright, there r some finer details missing but it's still enjoyable. At the end of the day it's fantasy so take it less seriously.