If your only looking to improve your player character & want all other vampires to stay ugly your better served using existing fixes, however if you are like me and might spend more than 10 sec in the company of others it is quite jarring and something needed to be done For everyone else though its a real struggle battling the ugly that was injected with the DLC.
Some like the goblin thing in which case you can stop reading this as it is not for you.
There are already many good (some not so good) mods/guides that have helped with this and if done correctly you can get back to your old pretty human self. Its no secret that using Dawnguard turns vampires into goblins.
a product applied to Vampires, especially the face, to improve its appearance involving or relating to treatment intended to restore or improve a Vampires appearanceġ.