This is really good. The plot was complex but never convoluted. I think it has a right blend of Crime/Mystery/Politics/Comedy with some heart warming moments. The only thing lacking was a bit of romance, but it's just me the hopeless romantic..

I like that even if the show portrayed a really crazy and corrupt world, they also showcased a beautiful fraternal love between the main characters. They maybe crazy, they may steal, cheat and beat everyone that crosses them. But they're fiercely loyal to a fault, they have each other's back and they're so protective of their sister. It's touching to see these brute and crude guys care for a badass woman.

The actors are great too, plenty of familiar faces everywhere. Matched with a good OST and musical scoring, it became pretty entertaining.

I wouldn't mind watching a second season, but as usual for Korean dramas, they rarely do sequels so I'm good with that too...