WP8 is great, but she does deserve to know that there are features missing from it. No orientation lock, my biggest gripe, and in your post you mentioned that you get free access to xbox music, but that isn't true in the fullest extent. You get free access if you "buy" it. Even then the music app for WP8 is lackluster, to be kind. There are parts of the WP experience that many just assume should be there and aren't. Do make sure you give her the full picture, there is a lot wrong with WP8. I love the platform, but I'm not entirely happy with it.