My problem with Sera has been here hypocrisy. Yes, she's straight forward as it can get about what she wants and what she wants to say. But I find her a big fat hypocrite.
And I am using the approval system to prove this. Early on in the game, in the Hinterlands, you need to get blankets and food for the refuges. Cole Approves, Iron Bull Approves, Blackwall Approves, etc. Most people approve of these things.
Sera, Slightly Approves.
Where is all of her, for the little people and doing for the people who need it, and then when you do it, she doesn't even show a bit of care. It's not all about making yourself a nuisance and having fun.
She refuses to learn
She refuses to accept her mistakes
She can be downright petty
And yet, I still like here. With the right Inquisitor, she's actually a decent character, and I do like her more when you befriend her. But a Lawful Inquisitor, whose straight forward and pragmatic, only sees Sera as a petty child. Because she is.