Let me start by saying this little security kit has been a game-changer for my solo travels. The portable door lock is the star here – it's so simple yet effective. I've used it in sketchy motels and Airbnb apartments, and it gives me peace of mind knowing no one can just walk in, even with a key.

The installation is brain-dead easy: slide the metal bracket into the door jamb, flip down the locking arm, and boom – instant security. Though fair warning, it won't work on doors with super tight gaps (learned that the hard way at a fancy hotel). The single-prong design makes it compact but does feel slightly less sturdy than dual-prong models.

Now about those window locks – these bad boys surprised me! I initially bought this mainly for the door lock, but I've ended up using the window locks way more. They're perfect for keeping sliding windows partially open for ventilation while preventing full access. No drilling required, just screw them into the track. They've been great for my home windows too, especially with curious pets around.

The build quality is solid – stainless steel construction feels durable, though the black finish scratches easily. The included rubber cushions prevent damage to your door/window tracks. Everything packs down small enough to fit in a jeans pocket, which is perfect for travelers.

Biggest pro? The psychological comfort. Whether I'm in a dodgy hostel or just want extra privacy at home, this kit makes me feel way more secure. Biggest con? That single prong design means a determined intruder could probably force their way through with enough effort (but they'd make a ton of noise doing it).

At around $20 with coupon, this delivers serious value. It's not Fort Knox security, but for travel peace of mind and basic home safety? Absolutely worth every penny.