First off, let me say this security bar is a game-changer for my sliding patio door. I live on the ground floor, and the flimsy built-in lock never felt secure enough. The adjustable length made installation a breeze—just popped it into the track, and boom, instant peace of mind.

The alarm? Okay, here’s the thing: it’s literally a repurposed bicycle alarm (yes, the box says so). It’s loud, but not exactly what I expected for a 'door security system.' Still, it gets the job done if someone tries to force the door open. Just don’t expect high-tech.

I love the dual-head design. The L-shaped rubber head grips my sliding door perfectly, while the Y-shaped one works on my bedroom window. No more worrying about my cat nudging it open. Plus, the silicone caps saved my walls from scratches—major bonus.

But fair warning: if you’re looking for Fort Knox-level durability, this might feel a bit lightweight. It’s sturdy enough for deterrence, but I wouldn’t rely on it alone in a high-crime area. For apartments or travel? Absolute lifesaver.