I'd imagine she will have her own set of problems later on, especially since she can't equip the vast majority of weapons that you get after Nurvus, but it has been quite easy so far.
She starts off with just a Shotgun (+6 ATK, added into the game exclusively for the Party Select hack) and Head Gear. Nonetheless, most attacks only did one damage to her, even from Igglanova. Most items are useless to her, so I stocked up on Escapipes and Teleipipes.
She did have some trouble in the Tonoe warehouse, but gaining a couple levels solved that. Likewise, Speards still hurt, and Rippers *really* hurt.
I fought Juza at level 16, expecting it not to go all that well, but everything except Forceflash did 1 (or minimal) damage with Barrier up. I threw the Impacter and Titanium Armor into a shop in Aiedo, since they're dummied out of this hack. Next is the plate system.
I still have to finish Hahn and Gryz. I get bored and switch.