well the majority of the drama revolves around revealing truths, and bringing justice
I don't think the drama gives us justice entirely in the end, but that's still a bit satisfying. However, it contains many plotholes and loose ends, which are extremely disappointing.

The drama could be sectioned into two parts: ep 1-13 and ep 14-16; and I thought episodes 1 to 13 were really great, and entertaining. It gives us badassery, corruption (in ingenious ways), characters in survival mode, scandals with big companies, and a portrayal of some of the evil elites.

It was however rushed and some parts didn't make sense. I expected more for a LJS comeback drama, especially regarding his character's personality (which I found had no depth)

I think you will enjoy this drama if you like action dramas that take place in prisons, with many important side characters.