Hands down, one of greatest dramas made in the last few years.
It's probably in my top 3 favourite dramas I've seen this year and it's totally deserved the hype.

I liked the story and the pace, it's very satisfying specially the punishments, I found myself agreeing with Justitia most of the time, I don't care if they didn't go to jail if the criminals were tortured, died painfully and went to hell, that's is more satisfying than staying behind bars for a few years.

I also have to applaud the acting, PSH shines here, and I have to say I'm impressed she improved BIG TIME, the rest of the cast was also amazing but I only mentioned PSH as she was -for me- slightly over hyped as an actress specially in her old dramas, I liked her generally but let's say I wouldn't exactly jump at the any chance of watching anything if I knew she is in it, nevertheless, here she was amazing, she nailed her role.

I don't think I hated anything about the drama, the only thing that I slightly didn't like was that it was very predictable, I expected almost everything and every secret, yet I didn't feel bored watching it it was still entertaining.
I also loved how they didn't dwell on the crimes, only took the time to show the whole punishment instead and equally focused on Justitia story as well as the crimes and punishments.

I would recommend it if you like the genre. It's done very well.