Have a read through this thread here
http://www.canadiangunnutz.com/foru...s-on-Grand-Power-9mm-s-22-s-and-range-reports
I have the K22s and it's pretty finicky, the reliability just isn't there for me, not to mention finding parts and support may be challenging as Grand Power recently changed their Canadian distributor and I don't think they're fully stocked up yet.
It's a full size hand gun, not a scaled down model of it's centre fire counterpart so it might be a little big for your daughter's hands.
I've run a variety of ammo through mine: mini mags, velociters, stingers, winchester bulk, golden bullets, thunderbolts, blazers, federal Champion , federal auto match, Sellier & Bellot and all of those have given me issues. Usually it's a light primer strike with the occasional FTE. Worse for me was the winchester white box, thunderbolts and golden bullets. I seemed to have the most success with Federal Auto Match and SB Standard ammo.
I wouldn't recommend one after having mine for a while and it not going "bang" every time I pull the trigger. I'm seriously considering replacing it with a PPQ M2. My friend has a M&P22 and that thing will eat all types of ammo without any problems, I've run all the same above ammo through his and his M&P goes bang every single time.