It's actually a lot of fun playing as a Vampire. Vampire Lord maybe a little bit overpowered but it's still fun killing things with Drain Life and then doing the Vader type choke on enemies. The negatives of being a Vampire are actually manageable in comparasion to Oblivion where you got killed if you were out in the sun past Stage 2 I think.
Health, Stamina and Magicka can be regened with equip effects. The lady Stone has been very helpful with Health and Stamina.
Nice Frost Resistance at a small cost of increased fire damage which can be negated with Fire Resistance equipments.
No more worrying about Rockjoint
The benefits of Necromage, etc.
I always thought the Vampire Lord was overrated but it's actually not. Overpowered might be the more accurate description but that's not a bad thing as certain enemies can still kill me if I'm not careful.