Turns out endings are pretty hard to get right. I don’t remember having that experience with Neuromancer, but every Neal Stephenson book before Anathem, yes. I have not yet made it through a Vandermeer book, but I like the idea of the Ambergris books, if not the actual execution.
Speaking of endings that seem sort of rushed, I just finished up A Feast of Snakes by Harry Crews last night. A former high school football star feels his life closing in on him as the annual Rattlesnake Roundup approaches in Mystic, Georgia sometime in the early 70s (probably). Overall very good, grimy as hell and somewhat nightmarish, as you might expect for someone labeled by Wikipedia as “the Hieronymus Bosch of Southern Gothic”. I loved it, even if it was hard to read in places (because of the content, not the language) and the ending did, as I said, seem a little rushed. Gonna have to track down more of his stuff.