Since you like his other novels I should warn you that it's unlike those - it's more of a cross between later Dostoevsky and Gogol, as well as a late variation on the Romantic trope of the doppelganger. It's tragicomic but hilarious. It shows its influences very clearly but it also shows D's own unmistakeable qualities.

The social-literary critics of the time (Belinsky etc.) hated it and threw D into the literary doghouse for it. But it was the one book of his that Nabokov loved. I know whose good opinion I'd rather have! That difference more or less tells you everything.