She was, indeed. Her conclusions about what she was right about were, however, awfully skewed by her "objectivist" philosophy. I loved AS through most of the book, but the seemingly endless, God-hating screed of Galt near the end almost killed it for me.
The last third killed it for me. I loved the basic dystopian premise she set up in the first two thirds. But the appearance of Galt as Dagny's dream man and the endless speeches by Galt (and Francisco and other characters) really tried my patience. Also, the ridiculous sex scenes between Dagny and Rearden made me snicker. Ayn Rand sure seemed to like men who treated women roughly.