I'm rating this higher than I did last time around, but not by much. It's not my favorite book by a long shot, but after learning more about Joseph Conrad and writing about textile manufacturing practices  contemporary to Conrad's writing of the book in how they relate to its content, I got a lot more out of it this time around.
It's a slow paced book, but time moves quickly for the characters.

Lots of troubling language, to say the least. Dated stereotypes. It was boring, problematic, and not interesting at all. 

This is really fascinatingly written; a very evocative portrayal of a man journeying both into the barbarity of his own culture and the psychological darkness of his on mind. The elliptic narration that grows more and more unsure of its own truthfulness is genuinely frightening and unsettling and had me at the edge of my seat. What does of course not work anymore is the use of local Congolese (for lack of a better discriptor) cultures as a "prehistoric mirror" the "savagery" of which reveals the darkness also lurking within European culture, I don't need to tell anyone that this is racist. But it's also a story with a distinctly anti-colonialist position, depicting and denouncing the mindless hypocrotical violence inflicted onto Africans under Colonialism, published in a mostly pro-Colonialism magazine, no less. So I think this is an interesting study in how anti-colonialist writing in Europe developed and how racist rhetoric was still very much a part of that, which we can use to reflect on our current political rhetoric, especially progressive ones which are nonetheless undoubtedly still marked by racist bias. I would recommend this both for quality of writing and relevance to contemporary discourse.

I don't know if I want to rate this. I'm reading it for a class. There's some interesting parts to it, and a lot to write about, but it would be a stretch to say that this is an enjoyable book. I'm glad I'm reading it in grad school, rather than in highschool like a lot of my peers were required to.