I don't care what anyone thinks. Mr. King can write. It's not just my own love for his writing clouding my vision, either. My childhood was taken up reading his novels, so there's a point to be made that I might be biased as a corrupted youth fanboy with an emphasis on boy, but as an adult, I think he can write very well. 
 His book on writing was nothing like a manual to write; it was personal, insightful, and modest, but more importantly to me, it was honest and interesting. 
 I had loved the 7th book of the Dark Tower because of how he had drawn his own person into the tale, so I knew about his life-changing accident already. It was no surprise to be reading about it all again, but with a lot more detail. No matter how many novels of his I've read, I always come out of it a bit changed and curious. This book is no different. So what if he's popular? He's very interesting, too. :)