Open it, try it and if it works OK it will be a good one to start sewing on. She can then decide what she wants. Sometimes learning to sew and learning a complicated machine at one time might turn her off. She can keep the WM one for spare if she decides she wants to sew alot.
Your good to care about her and offer your help for her to learn, that will mean so much to her and you will get to spend tme with her while she is learns. Let us know how it turns out.