I read Atlas Shrugged in my mid-20's. When my dad asked for my reaction I said I thought she was an excellent writer and a half-baked philosopher. I'm sure my literary standards are lower than Harold Bloom's but I stand by that characterization - it's a fascinating premise and it was absorbing enough to keep me reading at a good pace (except for the Godawful "This is John Galt" speech). On the other hand it seemed pretty obvious to me that her way of thinking only makes sense when you are healthy and well off. Which seems a good description of her support base.