I’ll let the narration give you the basic info:
First of all, awareness and pays off. The lady realized quickly what was going on and took action so we can add decisiveness to the formula and was aggressive when she finally needed to be.
We also have confirmation that the first rule in a gun fight is to have a gun. No doubt that things would have gone differently if the lady was unarmed or with a sub-standard weapon. Also, I am sure she never thought that a gun fight would involve her sitting on the floor against the door using her rear end as door stop: we never know when or where we will be forced to fight for our lives.
And I will say it, Pocket Carry SUCKS. The stars aligned right this time and only the Bad Guy lost, but damn ! It took forever to get that gun out of the pocket.
Add your own observation. This video is full of lessons we can take.