I don't think I've fully watched an asian drama in about two years. I'm not sure what happened but suddenly all the korean dramas that were getting made I found really boring. I haven't found one I've liked in two years and I don't really see it changing any time soon. The only dramas I usually enjoy now are japanese dramas and even them I don't fully watch.
Haven't watched it the whole way through though so I'm not sure if the sub is totally great but I hope it helps :)