I enjoyed watching season 1 and now about to finished watching the second season. it was a very good show, brilliant directors and script writers also very good actors that could bring the characters alive. but here some comments/opinions on the second season.
the show actually can just end with only 1 season but due to fans demand, the producers creates another season but the second season seems a bit more action, more villain than season 1 that make the whole show a bit draggy.
the main character, So Mun has becoming more powerful than other counters that make the others depending a lot on him and their characters are a bit down. on the second season, the counters seems showing their power to the public more as compared to season 1 (as they actually were not allowed to show off their power).
character Jeok Bong is actually quite unnecessary (not useless, but unnecessary). this is because this character does not make frequent presence and only live as a "back-up" for other counters despite his ability to sniff the evil spirit and actually live to make this show a bit fun. but who cares since we got to see another side of actor Yoo In Soo for bringing this character + he resembles Lee Kwang Soo in Running Man show a lot in this show (look dumb + innocent but funny) hehehe
the villain in the second season. some of them i found to be unnecessary actually like Gelly. her character despite being annoying when she laughs, she is weak and easily found dead end when meeting with the counters. her goal is only to beat Ha Na and this make it less intense.
overall, season 1 was more intense, logic and very addictive to watch. season 2 is also good and intense with the presence of the villains but as the storyline keeps focusing on the villains, it make the whole story become draggy.
opinion - should have just ended on season 1 since the second season make us curse a lot hehehe but ok, this show is very recommended if you like intense, action and wrath genre!!!!