For the most part, relatively well (no pun intended). I get along better with my sister than my parents. Some extended family (i.e. my sister's fiance's family) I don't know as well, but I do like them.
I haven't gotten along well with my parents as much as when I was a kid. Most of the time it's fine, but my temper results in us fighting. I've never been all that close to my dad, though.
One family member, though...I would like to watch him die. (:
As for holidays, I usually am not around family then. Besides, it's pretty dysfunctional- which can be both entertaining and horrifying. I can't trust any of them. So it's fine with me that I don't see them much. It's not like we're all close and have fun together. The only family members that I joke around with (specifically pushing my limits with suggestive jokes) are my sister and cousin. Heck, I don't even like some of the people in my family.