This novel hardly needs a review to encourage someone to buy it, when you consider one point alone: It is over 50 years old and people still read it and enjoy it. It is a classic and nothing I can say can detract from that.
But it is also a product of its time, espousing a philosophy that is only internally consistent if one makes rather more assumptions than the author admits to. The characters all speak with Ayn Rand's voice, in a manner that might be familiar to readers of Galileo perhaps, but not so much with readers of a good modern novel. The characters feel unreal. The whole setting is preposterously unreal, and here is a novel that would have been better set in an alternate universe of a science fiction writer, in the manner - say - of Philip Dick's "The Man in the High Castle". Perhaps that was her intent in fact, but she gives us no anchor into the world she is describing and the action of the novel dances across an empty stage.
For anyone seeking rich characterizations, realistic interactions, or a sense of place in the narrative, you will be disappointed in this novel. The novel is merely the platform for Rand's polemic, and jumps from unbelievable to the preposterous without apology.
This being said, it was still a jolly good read. The conflict in the novel is engrossing and draws you in quickly. The first time someone defeats a "looter government", you want to applaud. When Dagny (the protaganist) completes a railway line against all the odds you can feel her exhilieration - even if you wonder how she managed it! The concept of the plot is refreshingly original, and readers will want to finish the novel.
Given its length though, finishing can be tricky - especially where it comes to a 90 page speech espousing Rand's epistemology. Some aspects of the plot were also tiring, and one wonders whether the book could have achieved its purpose whilst being edited a little. Ok, the 90 page speech was probably why she wrote the book - but perhaps Rand forgets the maxim here: "show don't tell"
Ultimately though, the book's philosophy suffers for being the product of an age that does not exist any longer. Marxism is a target of Rand's polemic, but also social programmes that have clearly worked and brought tremendous benefit to the world (including the US), such as the Marshal plan. At the same time, she defends a world of producer industrialists that largely no longer exist now, and rather misses the point that invention in our modern world is hardly the preserve of big business (even if only businesses have the resources to patent their inventions). I could say more on this, but this is a review - not a critique, so I will stop!
I give the book 4 stars despite all this criticism, because I do not regret having read it. I enjoyed it, I thought about it, I disagree with a good deal of it, but I do not regret it. Neither will you.