Well, I will admit that King has written some excellent issues during his Batman run. The main problem with him, for me anyway, is that he isn't a writer who is suited for long-term storytelling. Shorter runs such as Mister Miracle and Vision required him to focus his writing and, for the most part, he kept it tight and on point. But his Batman run has suffered from going off on tangents that, while possibly relevant once all is said and done, derails the main narrative he is trying to tell.
I think his run will certainly read much better once its done. I've said that from the start.