Yeah, she's very good. The skill duration is a bummer but it's hardly surprising that something had to be sub-par given how little else there is to complain about. She's tough as nails and can easily be stuck out way in front to win shoot outs with enemy archers and she's an excellent gatekeeper. Aside from her cost she's a lot easier to fit into a squad than ninjas since she's so much better at dealing with enemy armor.