I was always concerned about my front door. The door itself is solid, however the jamb has a sidelight, so the frame is only a 2x4 with trim. I used the Mini Combo from AC to reinforce this weakness, and then forgot about it. Two years later a neighbor called me at work frantic saying my house was on fire. It turns out it was a building behind me, and it was just a patio cover thankfully. During the confusion, two volunteer firemen who were passing by were stopped by my neighbor, who pointed to my dog barking in the front window. Thinking the house was on fire, these two big guys tried to kick in my front door to "save" my dog. They didn't budge it, after repeated tries. I came home to multiple size 13 boot marks on my door, however the solid door and frame were completely intact and undamaged. There was only a small bend in the door armor, where the deadbolt was repeatedly forced into it from the blows. The Armor Concepts product worked better than I could ever have hoped for.