I have heard a lot about Ayn Rand's books, but never picked one up. But I'll take a well plotted book no matter what. Does her stuff fall into that category?
Ayn is worth a read, just because of her influence on political thinking. Atlas Shrugged is her seminal work. If you read it, you can skip the rest.
I wouldn't exactly call it a page turner, but it's got enough plot to keep most readers interested. There are two long sermons (er, I mean, long polemics by major characters) that you might as well skim or skip.
Ayn Rand is neither the goddess/philosopher her adherents claim, nor the demoness her detractors claim. I mostly salute her for being willing to publish her stuff in an era that was 180 degrees opposed to her individualistic philosophy. As a Russian immigrant, she hated collectivism with a passion, and that passion comes through. She does a pretty good job of dramatizing why socialism is guaranteed to fail in the long run. In many respects, her work is a fictional complement to "The Road to Serfdom" by F A Hayek, which also explained why socialism inevitably fails.
A fair warning - Atlas Shrugged will drag at points. But I think it's worthwhile to finish it.