I enjoyed watching this series as I am a big fan of Yaya and I can stare at her face the whole day. Nadech is indeed eye-candy and it looks like he buffed up for this role.
The action scenes are pretty good and I love that Yaya is very believable as a princess - elegant, poised and "well-trained" in archery, fencing, martial arts and can hold a gun. I love that she is not the damsel-in-distress type who only waits for the male population to rescue her.

I cannot understand why they said it was a flop in Thailand as it had a good plot, beautiful faces, good friendship, breathtaking scenery and it was fun seeing the Royal wardrobe as well.

The only con for me was that the ending seemed rushed - another episode would've made it better.