So, I couldn't yet convince her to use it on her legs, but I did get her to shave the back of my neck with it. I showed her in detail what to do and not to do, let her get the feel of it, then rubbed a bit of shaving cream in with some water and let her go to work. It was funny to feel her gaining confidence as she was moving from one side of my neck to the other. By the time she finished she was shaving like I would have.

Good experience, just thought I'd share. Hopefully I can get her to try her legs sometime or let me do them