At least with me!
I have just finished the first ep of Oh My Lady (available on viikii, no region restrictions) and...
I am in love!!!!!
It was utterly hilarious - I laughed out loud repeatedly (the whole drama is worth it just for that opening scene alone), full of delicious hormonalness (I kinda space out staring at Siwon's abs :P), and already had that underpinning of heart which makes all the difference with a drama (I loved Chae Rim with her little daughter - if that wasn't sniffworthy, I don't know what is).
It moves fast, has two main characters I already love - Chae Rim is loud and brash and confident and much too impulsive and Siwon is a sweet, dim darling. The whole premise of a talentless superstar (popular for his looks) and plucky divorced ahjumma trying to provide for her daughter = win.
So, go watch.
It's awesome!