Is it one of the best Cdrama I've watched? Probably.
Great story about the palace life, which involve multiple consorts, maids, eunuchs, guards and the emperor himself.
The female lead is a strong minded woman who can tell right from wrong. Her loyalty, determination and creativity made me respect her, even if at times I didn't like her ways. I think she is one of the best FL like ever, as she is also smart, hard working and confident.
Also, the drama is full with other interesting charcaters, sub-stories, heartbreaks, betrayals, intrigues and friendships. I was hooked from the start and it became even more interesting as I continued to watch (I did skiped through some episode at some point, because I was eager to know what will happen next).
I also really loved the setting and costumes, it's the first time I watched a drama about those times and everything looked majestic to me.
(I gave it a 7 in rewatch value because it's a long drama so I personally probably won't watch all of it again).