My wife and I have been on a K-Drama kick (more her than me...) and we recently signed up for Pro. Other than non cross-platform syncing (resume where you left off on another device), the service is great!
These are her recommended shows, if anyone wants a starter: The Master's Sun (I really liked this one), Strong Woman Do Bong Soon (We're still going through this one, but it's awesome), Healer (She talks about this being the best one all the time), Moonlight Drawn by Clouds, My Love from Another Star (I didn't like this one, but she did), Descendants of the Sun
Plots:
The Master's Sun: Girl can see dead people and the president of a mall (for some reason) allows her to not see them when she touches him so she starts hanging out with him.
Strong Woman Do Bong Soon: Girl has super strength. Comic-book style, to some degree. All the women in her family get the power but they can lose it if they use it for dishonorable reasons.
My Love From Another Star: Alien guy has been living on earth for several hundred years and is involved with an actress.
I don't know the others, but I definitely recommend the first two. 😄