It's too early to give good answers to these questions. I am level 6 and only have a couple skills. Once I reach level 7 and pick up Freezing Touch and Petrifying Touch, then my build will have more to do. Those skills are hard CC (like Stunning Touch), with a base 100% chance of effect.
She usually goes second in the round, after my Rogue, but she has a higher movement than my Rogue. Right now, I normally delay everyone's turn to let the enemies run up, because my Warrior has the Leadership skill, and is much farther back in the turn order.
I am using Far Out Man to extend the range of my touch spells to 5 meters. She has "Hide in Shadows" as her escape skill, and will probably pick up Cloak and Dagger later on. Neither are perfectly reliable because of the dexterity penalty.
I'll have to give a further report once I have more skills set up.
