I agree, Janet did come across as very genuine. She gave the impression that she was saying what she really felt, not what she thought she 'should' say.
It's strange because when she auditioned, I actually thought she seemed extremely fake and falsely modest. Somewhere along the line, she dropped the act and became more likeable even if she did start openly showing less attractive emotions like irritation and impatience.
She handled her elimination with dignity and grace, in my opinion. Good for her.