They've patched most of the bugs and fixed a lot of other stuff that was kind of wonky. The big problem was with side-quests, but they were fixed a while back.
"Pain, or damage don't end the world, or despair, or fuckin' beatin's. The world ends when you're dead. Until then, you got more punishment in store. Stand it like a man, and give some back." -Al Swearengen