Well, she'll be happy as long as she can make the switch, even if it wouldn't last very long XD She'd give the doll back anyway, since it's not anything she's interested in.

Would Kreutzer ever leave them unattended, like leave them at home while she's at work/school? She's a rogue, so she can pick locks and stealth around, and she'd throw down a smoke bomb if the dolls give her any trouble.