I haven't missed any episode -- well, as I'm on Hulu. It's really convenient way to watch all the episodes either on iPad, AppleTV, and my MacBook Pro. I love this portability. And yes, I steal images.
The show is a little too dark for me -- some brutal scenes I don't appreciate. But actions, actings, plot, and overall quality are very nice. And it's getting more about Sung's role! I can't wait to see next episode. I like how he sounds when he speaks Korean. :)