Smith is a Libertarian kook who wants to abolish taxes and therefore abolish government and condemn people to living in a brutal anarchy ruled by the whims of warlords like in Somalia. Of course, he doesn't think that's what the end result will be, he thinks that the end of government will lead to a flowering of human creativity, vast wealth for all, and that this happy state of affairs will be self-perpetuating instead of falling over with a crash just as soon as some nasty piece of work acquires more resources and hence more power than his fellows. He's written novels about it. One of them, The Probability Broach (which I haven't read) is also available in a comic book version, which I have read and enjoyed. On the strength of that, I bought some other of Smith's works, including this one.
In many ways this story is similar to that of The Probability Broach: someone accidentally travels between universes, leaving behind an authoritarian parody and ending up in Smith's Libertopia; once there, there is a mystery to solve; most of the citizens of Libertopia are friendly, generous, and excellent shots; some however are the sort of parody of Smith's enemies that Goebbels would have been proud of - and are just as ridiculous and unbelievable to their modern targets.
The book is slim, only 240-odd small pages, like the classic pulp-era sci-fi novels. The story is paper-thin, the politicking obvious and silly, the occasional philosophy trite, the jokes corny, the dialogue and character-building poor. As a piece of mindless entertainment it's still not too bad, but I only give it two stars, because the circumstances of the alternate reality and the backgrounds of some characters are not given the space they need to be adequately developed if you were to read this as it seems to have been intended, as a stand-alone story. If you've already read The Probability Broach, then give it another gold star.