I didn't remain a vampire for long as I was getting really annoyed with the whole sunshine burning thing. Plus, being attacked on sight started getting old and got in the way of some of my, shall we say, transactions.
Two good things to come out of my brief time as a vampire: Killing both Belethor and that aggravating Cloud District guy upon my arrival in Whiterun one fine, sunny day. They attacked on sight, naturally. I had nothing against Belethor, although I couldn't help but think as I stood over his fallen body, "Yeah, that's for that "sold" sister you never had!" Yeah, I tend to get all uppity like that.
Now the Cloud District dude, on the other hand, was an annoying p***k. Man, what an insulting little snot everytime we crossed paths! So it was indeed a most blessed day when I took his pompous ass out. Now, whenever I pass his wife, she always says something like, "I hope you rot out in the wilderness." A charmer for sure. No surprise those two were married. Three times I've tried to take her out with my bow at night, but there's always people walking or standing around. Ye gods, don't these people sleep?!
As for the DLC? No real preconceived thoughts or hopes from me. Just bring it on, because whatever it's about, I'm sure it'll be good.