Okay, so this little metal guardian angel has been both my hero and my nightmare. Let me break it down for you.

First off - the GOOD: This thing is SOLID. Like, '200-pound-me-trying-to-break-in-and-failing' solid. When my sketchy ex-roommate threatened to come back, I slept like a baby knowing this $20 piece of steel was holding the fort.

The BAD: Read the instructions, people! I learned the hard way at a hotel when I got LOCKED IN MY OWN ROOM at 3AM. The door had some sneaky black trim that hid the lack of gap. Cue 45 minutes of panic before we MacGyvered our way out.

PRO TIP: The silicone caps are lifesavers - my last version scratched up doors like a cat marking territory. The velvet pouch is a nice touch for travel, though TSA always gives me the side-eye when it shows up on scans.

Final verdict? If your door plays nice (inward opening with gaps), this is hands-down the best $20 security upgrade. Just maybe keep a crowbar handy until you're sure it fits.