First off: I rarely watch revenge lakorns, mostly because no self-respecting man or woman should put up with that kind of abuse, let alone FALL IN LOVE with their abuser. I watched this one because it's the same director who did Full House, and I ADORED Full House.
WARNING: RANT AHEAD

THINGS I LIKED: Directing is exemplary (as usual). I especially like how this director humanizes the nang rai; Chaya really wasn't evil for the sake of being evil. They portray Chaya as someone who is so desperate for love that she will do anything for it. Childish, but mostly realistic.
The music was good, mostly. The dramatic music was definitely overused, though.
Peat and Kiew's chemistry was AMAZING.
Peat is SUPER HOT.
The romance between Kiew's friend and the bar owner guy was SO CUTE and serious relationship goals.
Those few episodes where Peat and Kiew were happy together made me so happy, though they were fleeting.
I was glad they showed how hurt Peat was. Instead of being just an angry guy up to his eyeballs in revenge, they showed us that underneath all that, he was deeply hurt (not that that justifies anything). In short, I loved the emotional depth of the characters.
I liked Kriss a lot until I realized in ep 9 he was probably evil.
The story is mostly unique; it followed a few stereotypes, but everything else felt very original.

Now for THINGS I DISLIKED (here comes the rant):
The overused dramatic music.
Peat was WAY TOO CRUEL. I desperately wanted Kiew to find somebody, anybody, better than him so she could stop suffering. I couldn't even be happy they ended up together at the end because Peat was so abusive.
Pest and Kiew's dad. I HATED the BS of "use your love to thaw Peat's heart because he still loves you." How DARE he ask Kiew to endure more abuse based on the TINY possibility Peat actually loves her! It doesn't matter if Peat still loves her, when he is abusive to her, he deserves JAIL. Period.
Chaya and Kriss. Honestly I would've shipped it if Kriss hadn't tried to ASSAULT her that one time. Messed up.
Peat's repentance came too quickly. It should've been a slow process of him learning from his mistakes, not one sudden revelation that made him good again.
Kriss. Oh, Kriss. His repentance scene is downright cringey. Not that I don't believe in repentance, but the guy TRIED TO KILL THEM AND RUIN ALL THEIR LIVES. NOT cool. Again, it's a slow process, not "Wow you just shot me but I forgive you cuz you said sorry haha lol BFFs 4ever!!" *facepalm*

Strangely, I still enjoyed the drama pretty well. I guess it's the same with all revenge lakorns: it's just a guilty pleasure. I've seen too many even more frustrating dramas to say this one was horrible, though I will say it could've been a lot horrible. If you like great chemistry in a guilty-pleasure lakorn, this one hits the mark.