Good :
Characters :
All four main characters + ML's brother you start rooting for them early on and thats the important thing. And they are so normal people. Not pigheaded with tons of misunderstand. they actually sit and talk and actually work. Specially in the name of so called "strong female character" sometimes FL is made a caricature by showing her arrogant , so confident even when mistake is done that they dont acknowledge. I so love the fact that here FL knows her thing and does not hesitate to voice her opinion and do her work and she is also willing to listen to ML bcs he has more experience and has a wider perspective. its periodic drama so women would still have limited access to anything and everything so i didnt find FL acknowledging and appreciating ML as some fan girling. (as some people commented in Viki and here).
Equally good supporting characters makes it fun to watch. Second ML is so fun. Little things he does is so funny , not over the top. Even other smaller supporting characters like ML's general or Eununch's general are fun to watch.
Best part of the drama still is that they sit and "talk" it out which i find many dramas missing. Be it leads or even other characters.

Acting :
Almost all actors have done great job although sometimes i found FL just standing there with no expression. She could have done better there with a little more expressions but still does not impact the experience. She is good enough for her role. Highlights are the Head Eununch and his assistant. They did such a great job to make sure even plotting villianous scenes of theirs is fun to watch.

Plot :
Plot is not very serious that you have to be at the edge all the time but at the same time not so loose that you lose interest in it .
Overall interesting plot but you also enjoy the journey of the characters

Bad :
Attire:
Whats with the attire of the FL !! Initially she wore sort of cottonish attire which made sense from where she came but then she changes to a more expensive attire. Well we can assume she bought it from capital but then when she is back in village she is wearing some silikish fancy coats which does not go well with what her status is or the village nor does it go well with the well to do family.