I doubt you'll find too many folks here that wouldn't recommend the 15-22... but then again, this is a 15-22 forum.
I guess it depends on the lady. She obviously is a shooter, since you've been instructed to get her a gun. This is my favorite gun I own even though it is my least accurate. Where it shines is ease of use, being based on an AR platform and relatively cheap ammo. For lots of ladies, kids & first time shooters, it shines because a 22 doesn't kick and is not very loud. Put a suppressor on it and then it is very quiet.
It is accurate enough for what it is designed to do... plink. Yes, it is accurate enough to take the occasional small game and plenty accurate to hit targets and soda cans. It would be my last choice to put meat on the table but that is not a concern as I have other guns for that. This is my fun gun & my trainer for my ARs. It is so similar to a real AR that the training is valuable and much cheaper. This also is the gun that I use to introduce new shooters to the sport. 100% of the time, all new shooters have truly enjoyed it and left with big smiles.