We've considered those, although have not shot them yet..
We're thinking about a revolver just because the operation will be easier. And she won't have to struggle with racking the slide, magazines, jams etc etc.
Hammerless revolvers have a very stiff trigger pull. My GF can't keep the gun on target and pull the trigger. Just doesn't have the hand strength.
And my little smith that fits her hand is so light it kicks the h out of her.