I would have to say that I am some what disappointed with this book. As a finale to the epic that really was very interesting, it fell a long way short in giving me a feeling of sitting back and admiring what I just read. 
 The story lacked any real meat. There were probably three key moments throughout, the rest was pretty much just palava. Instead of dramatically closing in on the Dark Tower we kind of ambled along and found ourselves there without any thing surprising happen. King had lots of opportunity to create drama, suspense and even sadness with character deaths, but for some reason, in this book he decided to tell us ahead of time something was going to happen. I can see maybe that working once, to build the pressure knowing what was coming, but he did it with everything. Never have I read a book where the deaths of main characters left me feeling nothing because there was no surprise, It was like a long term sickness death rather than sudden accident, I just felt, right, thats him/her dead then, whats next. In this book you read a lot of this: 
 Roland was about to stop him from opening the door, but decided not to. Later when he looked back he would wish he did stop him, for it was the last time he would speak with him 
 Roland understood what was worrying him, the pair of them would not return from this trip, one of them would die out there 
 There was much of this. I was waiting for: 
 Roland decided not to put sugar in his tea. He would look back later and wish he had, for the tea did not taste as good. So e called his ka-tet and they had palava, he talked about Majis for nearly two nights, where he did put sugar in his tea. 
 So on to the ending....... 
 SOME SPOILERS ON THE ENDING TO FOLLOW. 
 Here is how I think it went. King finishes the book. Sends it off to his editor and his editor says "are you shitting me?! No way Stephen, the readers would crucify you. You can't end it like that. go back and write it again. 
 So King somewhat grumpily does what he is told, only after making sure, that we, the readers, understand his contempt for us wanting some closure. (sure Mr King, I 'get' the story is not about the ending, but about the journey, I did the journey, all 7 books, I am not an idiot). So King then thinks, right, I need a ending, But ah-ha, do i? There never really was an ending, so I'll make up a quick stupid ending that is completely out of form with the rest of the book. 
 Don't even get me started on the happy hollywood closure of the other part of the story - Gods that was cringe worthy. 
 So all in all, i was saddened that the story ended this way. I still gave it 3 stars, because I have really enjoyed the whole epic and I was very impressed with some of the writing. Some of that mid story was brilliant, unlike the last book there was some brilliant tension building like Blaine the Train. 
 Right onto the next Epic.