I would take some pics with you, good idea. You can also show her styles you like and don't like that way. Be sure to tell her you only want a little trimmed off, enough to shape it up. But be prepared that it could take some cutting if it's badly out of shape. You should be fine though.
Ask her to do the point cutting, as it does help the curls blend better (no shelving). I'm sending on the "good curly haircut" vibes your way, they worked for me last week!