There are Gothic elements, mainly that of haunted or mysterious architecture, but in this instance, it is set within a highly-technological structure. I have always liked this juxtaposition. You can see this in movies like Pandorum, Event Horizon, that one Hellraiser movie ... I think Sunshine also this element.

The characters are interesting and easy to sympathize with. You can feel they were written with care. There are no outright evil villains, but there are clear antagonists and protagonists. There are big themes explored - stuff like community, being a part of a group, there's also a bit of religion in there, but not too much. I think it was handled in a manner that wasn't annoying.

Overall, it was a good read. I particularly liked the exploration parts. It's nice to see that character assume that certain role. I will be reading more books of this type. Next one is Blindsight by Peter Watts.