This is written in the style of genuine science fiction. There is a vision, dystopic in this case, of the Earths future. Space travel is dealt with realistically and on arrival numerous mysteries confront the crew. Some of these are biological, others technological and others metaphysical/religious. The final result was interesting but not particularly fresh to me, nor I suspect to most scifi readers.
As a free ebook, however, it comes with some shortcomings that would be refined a little with more editing. Whilst the first spelling mistake came 250 pages in, some of the plot sequences were slow and/or difficult to follow. The time on board introduced people, but lacked substance; the escape and attack scenes tried to shift between perspectives but these were difficult to follow and confused rather than clarifying (and way too long for my liking). Unfortunately, also, some of the mystery elements are held back to maintain the intrigue, but they felt contrived, with the expected flow of dialogue getting cut short.
The result is not first class scifi, but the elements that make good scifi are there to be enjoyed if the tougher sections can be tolerated.