Honestly, it started off quite well setting up the characters, stories, only to ruin the whole show for me.
What I liked:
The music was decent.
The show opening.
Friendship.
Colourful setting, pretty faces...
What I disliked:
The show TOTALLY failed to integrate the romantic & campus vibe with the crime aspect of the drama. While watching, each half, felt like a different drama with similar actors(honestly, even Police University did better at this one). Honestly, it should just have stuck on one side & made the other a complimentary.
The acting sucked, for most of the time, esp. Daniel(hate me or not, that's my opinion), he obviously needs more experience if he ever considers taking on more main roles or it would just be a waste with his face & opportunities.
No character development, the characters just remained blunt, like what they learnt went through one side of the head & went through the other. Plus it felt like a huge percentage of the characters were thrown off the show(shadowed) as it progressed.
The main couple, no chemistry, like things just happen because the writer has pen in his hands & dictates the scene. They should have just stuck with the other couple & limit the rest to friendzoned or whatever...
The deal breaker, Dae II's death; honestly you don't go & kill off the most lovable character in the whole crappy show just to create a sad environment & try to evoke emotions from the viewers & confrontation basis to the villain.