Although I usually feel an immediate attraction to a particular author’s style (Marquez, Faulkner, McCarthy), I am questioning Vonnegut’s pull.
Aside from the most annoying, "So it goes." that is overdone in my opinion–although I do catch its revelation of a hopelessness in the constancy (?) of man’s nature and affinity for war–I do like the voice of the narrator. It is a style that forms an intimacy with the reader in its easygoing conversational tone, especially after having forged a closeness of sorts by the direct author to reader background of the first chapter.
I trust Vonnegut. I may not agree with him and his opinions as are defined by the story, which transcends fictional novel form more than usual, but I trust him. And that, for a writer of fiction, is one of the underlying goals.