My opinion on this is that the gun did its job against the threat, but she would have had some problems had there been more than 1 home invader.
I guess she could pull a dirty harry "did I fire 5 shots or 6? In all the excitement I lost count, but the question is do you feel lucky punk?" but all the same the gun was empty with the one guy.
Georgia being generally pro gun, I haven't heard anything from anyone other than that she is a hero. I hope that her local gun shop gives her a great deal on a .357 magnum.
If she had put a .357 hollow point into his head at point blank range the whole ordeal would have been over with 1 shot and she could have lead her kids out of the house or continued to be backed into the closet in case there was more than one with 5, 6, or 7 rounds left in the revolver.