I didn't really know what to expect and I procrastinated quite a bit before starting this drama as it seemed not to have work as expected.
I finally watched it for Taew and JamesJi and I don't regret it.

Despite what I read, the drama wasn't confusing and I was pulled in straigh away.
The characterizations were well done and so I didn't find any of them annoying.
It's a great drama because the more one goes forward and the more the intrigue and especially the characters motivations become clearer.
We understand that karma is one of the main "character" of this drama as each of the characters carry it through their next lives which has an influence on their personalities and caracteristics.

The nang'rai wasn't on the crazy side and her motivations were understandable as it came from a place of hurt.
The nang'ek wasn't naive, stupid or annoying which was a nice chance with some other dramas I have seen.
The Pra'ek was cool,charming and very alpha.

The cast

The whole cast was superb and carried this drama well.
I was so happy to see more of the Taew×JamesJi koo jin as they have so much chemistry *0*

Kudos to the actress who plays the nang'rai. She was really good.

This drama is worth a watch.