I've been watching many, many K dramas lately and they've started to feel a bit redundant. While the underlying love triangle is pretty typical (in every genre) I thought this was well done. It centered more on the struggles of two men coming to terms with their destinies, and young men learning how to be free of societal shackles.
Even though the series dealt with heavy subject material the humorous portions were well done and enjoyable. It gives the audience a chance to collect its breath as the tension builds.
It may not be the best show ever written but I'd certainly recommend it to anyone who asks!