She seems to be the most offensive of the gunners. She has higher attack than Frederika and Lu'Cia. Her damage output can be boosted by a combination of 4 passive skills: Missile Mastery (2 of them!), Tune Up, and Self-Sacrifice. Then there are the usual gunner espers and vision cards. Her TMR has a nice combination of accuracy, crit (not that much, though, compared to a crit Ras Algethi), and stun. And with her elemental type and Master Ability, she can snipe Mediena, Gilgamesh, Fryevia, Lasswell, and do significant damage to Nasha.
She seems like a promising unit. Lots of time to save Visiore before she arrives in Global (if WoL, FF Tactics part 2, and Ruin Knight Sterne haven't depleted them yet by that time).
Interesting to see a UR with a weapon TMR, that's a first I believe. Her kit seems to be underwhelming, however. Not going to pull for her, but as with other URs, I'll use her if I accidentally get her.