I didn't like Hell Girl because it just seemed like every episode would follow the same formula of something bad happening then Hell Girl comes then takes the bad guy away and then it goes on to someone else. Does it change up at some point because if it does then I will pick it up again.

So you don't like the episodic formula that the series has? If so, I'm fine with that since episodic series don't work for everyone.
It's doesn't really change much. Each ep is it's own story.