Was quite excited to watch this drama since it have been a while since Yoo Ah In's last period drama. But I'm quite disappointed by his works after Sungkyunkwan Scandal (eg Fashion King), and this almost made it to that list.
There aren't much exciting moments for this drama, and I honestly feel it's quite difficult to find good period drama. Instead, it's a very "safe" drama with okay characters and plot.
I liked that the Queen Mother was somewhat a crucial role to develop the plot. But I hate that she kept making King Sook Jong choose between Ok Jung and her (wrong move there queen mother, you need to learn that love is blind and you only see the person you love). It's starting to be too much you'll feel that it's irritating.
It also seem like the plot started getting less exciting after Queen Mother died. And I thought the Queen didn't have much presence in the drama. She wasn't evil evil, but she wasn't all out nice as well. On the other hand, Lady Choi Sook Bin had presence but she came out too late so she only managed to spice up the drama a little.
Also, characters like Hyun Chi Soo and Prince Dongpyung appeared to be too underrated and wasn't particularly adding hype to the drama. Only plus point that kept me watching was of course Yoo Ah In! And the idea that King Sook Jong will never let go of Jang Ok Jung's hand was outright sweet.
If you're not looking for an exciting period drama to watch and some sweet romance, you could try this. But if you are, I would suggest to not waste your time on this.