After testing the upgraded Door Guardian Heavy Duty for weeks, I can confidently say this satin chrome beast delivers on its security promises. That satisfying *click* when it engages makes me sleep better at night.

The installation was shockingly easy - I had it mounted in 15 minutes using just a drill and screwdriver. Though fair warning: like one reviewer mentioned, you might need longer screws if your door jamb is thick (I didn't, but keep some #10x3" screws handy just in case).

Where this truly shines is the brute strength. I literally threw my shoulder against the door (for science!) and it didn't budge a millimeter. The spring-loaded mechanism works smoothly but requires enough force that my toddler can't operate it - perfect for childproofing.

Two minor gripes: The oversized pads didn't quite fit my ornate door trim perfectly (needed slight modification), and while they claim universal fit, unusually thin/thick door frames might struggle. But for standard doors? This is absolute overkill in the best way possible.

Pro tip: Install one at both top AND bottom of door like they suggest - it transforms your door into a bank vault. At this price point, the peace of mind is unbeatable.