I finished Crime and Punishment. It is one of the top 5 most miserable & sad media (books, movies) that I've ever finished. I think it's semi-autobiographical and heavily inspired by Dostoevsky personal anguish of years of Siberian exile and imprisonment. I think it's an accurate depiction of extreme depression.
My main issue with works like this is that while they are great achievements in literature, I think the one-note negatively should turn off at least a portion of the readers who don't enjoy things like this.
The story, is extremely negative and sad and this continues until almost the last page, where Dostoevsky writes a pinch of hope at the end. I think overall his moral teaching of Christian penitence is so harsh as to be disagreeable. I think however, most people who finished the book may not feel the same way.
As a whole D is a great psychological writer and supremely talented, in particular since he was not a trained psychologist. I think he may have been what is now classified as a 'highly sensitive person' . His memory and attention to detail to emotional experience is simply not average.
I started Anna Karenina and Tolstoy's work so far as nowhere near the psychological depth as D.