It's pretty sad when the author of the book tells you the ending's gonna suck before you even read it.
It makes me wonder... I wish he would have written the last three books like RIGHT AFTER he finished Wizard and Glass, then maybe they might not have sucked so bad.
In all honesty, he should have taken his fucking time with the last three books instead of writing them back to back to back. The Dark Tower series was completely different than his other books, and the first four books were better because he took his fucking time, thought of other ideas, and every once in a while, the next book would come to him. He just forced those last three out.
In all honesty though, it didn't get REALLY fucking bad until Book 7, and not even REALLY REALLY bad until that ending. If an author feels he has to write and tell most of his fans to stop reading if they don't want to be disappointed, you know it's going to suck.