I loved this drama so much that I stopped at episode 9 and decided to wait for its completion and then binge watch.
Alas!
The last few episodes went off tangent totally.

What started off as a comic, funny, classically ridiculous drama got burdened with the stale and repetitive theme of wanting to kill a crown prince.
For heaven's sake - is there no other turmoil in the Joseon period beside murdering the royal family?
Every historic drama I've watched only has this as the basis of all trauma. Seriously??

The positives:
Rowoon takes the cake. He is so perfect in this role - riding a donkey - it's hilarious.
Rowoons side kick : deserves 11 stars. He is just phenomenal. Fantastic comic timing and expressions.
Everyone else is pretty good too
The romantic sidelines are pretty fun.
Absolutely gorgeous cinematography
Great wardrobes with aesthetic colors.

The negatives:
The last few episodes move away from comic to dark revenge or whatever.
The chemistry weakens. The romance dies,
Rowoon is just dragging his feet. The female lead is left hanging.
I don't know anything about the accuracy of this period - but somehow it seems unbelievable. The writers have taken some liberties where needed and at other places they behave conservative and illogical.

What a pity that this drama went downhill.