I heard so many great and bad things about this drama before watching it and after watching it, I personally was neutral about it.

This drama had great character and potential, but somewhere along the way the storyline became obvious in indirect ways and it started to become boring to me. However, I watched to the very end (as a fan of the scriptwriter and actors).

Though I give this drama more of an in-between, I recommend watching this for yourself because it's not a drama any k-drama fan would regret watching! It has action, fan-service, parts where you would laugh your head off, parts you would cry, and parts where you would just fall in love with not only the main actors, but all of the characters (well maybe not all - it depends on you).