I bought this novel Because it has been Compared to Heinlein's juvenile stories, Which I rather liked. The Books feeling, in fact, is right, but apart from fact it suffers from oversimplified to plot, rather wooden characters and a hard-to-believe background setting. The science Seems correct, but did does not make this book "Hard SF". I do not know about Sheffield, but if you want to read a good Pournelle, stick to "Prince of Mercenaries" or other books of his.
