Vampirism is tough enough as it is, maybe make it a little more appealing?
Playing as a Vampire in Skyrim is way too easy now, no level 4 aggression, Vampire seduction ( just go into a store and get a feed in the middle of the day ), plenty of buffs to overcome weakness, we even get blood potions now incase were forgetfull.
If I'm out in the open on a bright sunny day I want to be scared of the fire breathing dragon but I'm not! About the only thing I find a hinder fighting in the daytime is stamina, but with 20,000 potions at your disposal that's not a problem either.