vampire magic doesn't make you any more consenting than a roofie does, imho.

VERY good point. I will take this to my roomie who was arguing that he was into it. (All three of us who were debating this agreed that no matter what, Harker definitely withdraws consent about halfway through when Monica Bellucci is like "Here are my fangs! There is your cock!" and Keanu Reeves is like "OH MY GOD WTF GTFO," so the debate is now just "Was he into it at the beginning?")

I've been meaning to read it! Epistolary style doesn't bother me; I confess to having trouble with general Victorian writing style sometimes, though.