Well, she said she wishes they made a purse size 1911. The Sig is basically that. Has all the same mechanics for the most part.
As for picking it out ... It's her Christmas present. It'll be a surprise.
First off, let me start by saying "It's a SiG"

with that out of the way

If you like it, that's bonus points, since you'll want to shoot it to. I have an NCO who EDCs a P238, they're ITTY BITTY in the hand, as you well know. He loves his. It's not my personal experience, but I'd trust SSG Spruce's opinion, he's definitely a gun guy.