Thanks for the nice comments, it really made my day and caught me off-guard.
The gun she gave me is a 9mm w/8 rd mags; the .40 comes w/7 rd. mags. Those choices caused a lot of waffling with me and is really why I hadn't bought the gun yet. So I got it as a gift and it looks like the decision is made for me. Of course, one day I could get it in .40 cal. too.
My wife came outside while we were shooting it and she readily volunteered to shoot a mag. She really liked it and shot it well too.
While she was out there I happened to have my Garand out too so my son could shoot it. Knowing how big a fan my wife is of "Band of Brothers", I encouraged her to shoot the Garand. As soon as she "shouldered" that big rifle I knew she wouldn't like it. She fired off 2-3 rounds and decided it was just too big and she thought it was too weird to look through that "little hole" to aim.