Seriously.
She's like a limited Leading Shots that doesn't cost a die, and a Flight Controller that doesn't require a squadron command rolled into one. She makes X-Wing/Jan squadrons more lethal and reliable in brewing up opposing squadrons, or A-Wings even more lethal with their Counter, or B-Wings even more terrorizing to ships. She complements Rebel squadrons so well, to the point that I think she's an auto-include.
Between her buff to squadrons and anti-squadron fire from ships, I see her as a hard counter to Imperial squadrons. Rhymer Balls are gonna chase her ship down nine-times-out-of-ten.
In the ship-to-ship combat game, her contribution is much smaller, but still useful. It makes closing with Rebel ships even more painful for Imperial brawlers. Still not gonna do much against Demolisher, but it may allow you to fish up that Accuracy to stop Brace.
Regardless, I think she's great. The Rebel's Demolisher.