I think that the most enjoyable books are the ones where the author thinks of a compelling situation and then throws some compelling characters into the mix and sees what happens. This is what Larry Niven has done with the novel Ringworld.
The situation is immediately compelling. A metallic ring stretching around an entire orbit of a sun, comprising a surface area three million times that of Earth's. The characters are equally compelling: a cowardly alien, a vicious tiger-looking thing, a 200 year old man, and a girl who is uncannily lucky.
While other authors might spend pages upon pages agonizing over the plausibility of their situations, Larry Niven gives just enough background to be enjoyable and not so much as to be pedantic. Any initial skepticisms that readers might have (aliens, robots, Dyson spheres...) are quickly forgotten as the story sweeps along, full of clever twists and turns.
If you're looking for a challenging read or a book with scientific accuracy, Ringworld is not for you, but it walks a line between becoming a technical manual and insulting your intelligence.
The result is an enjoyable read, and a break from all the dystopian pontificating that seems to be favored by modern science fiction writers.
Cross-posted to Leoniceno's Corner