I feel like she's not that well written?? Idk ever since Hoffman got into the picture the entire plot is basically just like the fnaf games, changing every time a new movie comes out. And I also lost interest in some aspects of the plot. Although I like Jill as a potential to the story, sometimes I feel like her character is somewhat redundant (the only exception is when Straum is totally obsessed with finding John and starts harassing her, even the ending of 3D is meh). So I cannot really give an opinion on her personality since sometimes I find her unreasonable.