this drama has everything a kdrama should have...definitely my favorite out there. Its like they took every great thing about kdramas and put it all in a neat package for us.
non-boring story line? check
great OST? check (one of the best)
chemistry between actors? check (sizzling in some cases)
hilarious and embarrassing events? check
a beautiful love formation? check
actors acting their butts off? check (especially Shin Dong Wook's butt...um I mean acting butt...um I mean acting chops)
angst but not jump-off-the-cliff angst? check
a totally different way to tell a story (editing etc)? check (I haven't seen a drama do what it does to the story and not make it confusing but actually add to the awesome-ness)

man I love this drama!! definitely a must watch!!