For your stated purpose it's a perfect choice.
It has enough power to 150 easy enough, and ballistically at 150 it's ok. Past 150 is a different matter however.
The biggest reason it's a winning choice?
SHE likes it. What me, you, or any of our fellow internet commandos say doesn't matter. If she likes it, she'll shoot it. The more she shoots it, the more confident/comfortable she'll become.
That, my friend is THE key factor.
My wife?
EXACT same thing: Yugo's way too nose heavy. So what'd she pick?
My 16" octagon barreled, fancy stocked, 94 trapper with the "traditional" curved buttplate, and gold bead buckhorn sights.
I'm not happy with it, but she is. And she said I can have a new rifle(within reason) for Christmas!!