It's a fast-paced historical drama based on real events. It all happens in 24 hours, so there is a lot of action, plotting, and tactics. It's interesting to see how the events are going to turn out as life beside palace walls is a matter of life or death. I like that the queen is a great tactician and thinks a few steps ahead.
I did not mind the sexual scenes as they fit well in the drama. They could make more episodes to fully develop the characters. The acting was great, except for Jong Seon, as she does not fit in the drama. I can't help but feel her expression is just ruining the experience for me. Chang Woo and Soo Hyuk did a great job portraying the king and the crazy prince.

Apart from that, I really enjoyed the drama. It was a great watch, but I don't like that it ended at the best part. And I am not sure if we are getting a season 2.