Her stats, more than the rest of the cast, is heavily geared for magic/summons over whacking things. With that said, I agree she's perfectly fine in combat once you throw her in the front row and give her a good weapon. Considering her more powerful weapons become available long before other characters (Strike Staff anyone?) I definitely use her in more versatile roles. She's usually one of my main party builds until she dies because her magic is good and her Limit Breaks are a bit more useful.