So basically I came for Kim Nam Gil, and stayed for him and the whole cast and the story and loved it!

The show is pretty much focused on this main priest character, who is portrayed in a quite over the top badass way. Surely some people are against these things, but I love it. It feels kind of similar to these super cool main characters like Indiana Jones or Clint Eastwood in the Dollar trilogy, or the modern Sherlock Holmes stuff. You know it's kind of silly, over the top, but you just got to love it.

It has its fair share of action, goofiness but also very serious moments. In some episodes these were extremely well-balanced, in some, not so well... I think more well-written goofiness could have been good, it fit the whole thing anyway and it had a very sweet and pure feeling to it, which I missed of more at times.

The story is interesting though, how they investigate and try to go against a corrupt system which is a lot bigger than these few main characters, but they don't give up!

I also liked that a lot of characters are neither just good or bad, they have both in themselves. Doubts, fears, sins, and during the show they have their journey with these emotions.
The priest is pretty much like that too, he tries to make the world a more just place, but maybe with not exactly the best methods and thinking, but these flaws sort of make him more humane and not just a badass guy with amazing fighting powers.

And yes, there is a lot of fighting in the show, which is done in a very good way I think. I'm not really into that much fighting, it can be either overacted or way not convincing... Here it's Perfect! It's done in a very cool way, it feels like a great choreography that was memorized and executed very well, the sound design puts the extra noises on it in a great way, it's not overdone but very believable, professional and satisfying. You gotta appreciate these things.

Which was great: NO fart jokes! (Amen!)
Not so great: lotsa poop jokes... (Well, you can't win them all...)
Also a bit too much slow-motion... aaand a few not very good CGI effects.

BUT
The casting is great, the acting is great, the characters are all interesting and lovable even with their flaws (well maybe not everyone but most). The story is exciting, the music is good! And the priest is fiery aaand handsome! So if you like this stuff, go and give it a watch!