Edmund Cooper was one of my favourite authors in my younger days when dinosaurs roamed the Earth, and he still is today. To me he embodied the kind of science fiction that got me interested in the genre in the first place. His books are always about the people, not the just the technology. And not just in the personal sense as in "I wonder if I can patch that micro-meteorite hole in my space ship with this condom" but in "I say chaps, this doesn't look like London anymore. In fact it doesn't even look like ... . Oh ... (insert appropriate profanity). What do we do now?"
In "Transit", our group of heroes are lifted from home and unceremoniously placed in a building? spaceship? alternate dimension?, and is made to interact with the other humans. Then they are dumped on what looks like an island. No threats, no demands.
It is how the MC and the others react to this apparently insane situation that forms the basis of the story. First they have to learn to deal with each other, and then they find out that there are other threats.
Once again, it is how they respond to the threats that makes up the story, not just the action and combat, although there is that, enough to prevent the story from being boring.
And behind it all, is the question of why they are there, and what consequences their actions have, if any.
A good, very human, book.