Not very coherently responsive, especially at first - but she definitely seems able to hear, and from the way her eyes move, her vision isn't totally gone.
She recovers pretty quickly, though, her mental faculties kicking in - and she stays perfectly still, with only a tiny twitch as her mind surfaces. She's clearly paying attention to Elliane, too, and seems fully alert even before the point Elliane would be really comfortable letting her walk back out into that fight.
She doesn't speak while Elliane's working on her, though from the little sounds she's continuing to make, her vocal chords are functioning.
She takes the healing well, too. No spell resistance here, it seems - probably even a good bit of vulnerability, especially given the outsized burns and the curses Elliane undoes (which seem kind of simple, but probably were messing with her consciousness and ability to move; if you're just being hit with a normal sword, there's usually not a very large error margin between 'fighting without issue' and 'dead').