I read a comment elsewhere that remarked how the actor would have been better off playing a lady of Rohan; I am inclined to agree with their assessment.
I can see that angle. Would be inclined to agree as well, she'd do that role well. Though her character hasn't bothered me too much, as it would seem others. Only moment I've truly frowned was during episode 3, I'm avoiding spoilers, but basically she was beside a guy and in front of a queen regent or whatever, and I didn't find the decisions there to be very logical or believable.
But yeah, she'd pass with flying colors as a sister of Éowyn, standing back to back with swords in hands killing baddies.