After testing the HASWARE Swing Bar Door Lock for weeks, I'm genuinely impressed by its blend of simplicity and sturdiness. The zinc alloy construction feels solid in hand, and the black finish gives it a sleek, modern look that blends well with most door hardware.

Installation was a breeze - took me under 10 minutes with just a drill. Though fair warning: your door frame needs to be perfectly flush. I had to use a thin shim on one side because my pre-hung door had slight misalignment (a common issue in older homes).

Where this lock really shines is in daily use. That satisfying 'click' when it engages gives real peace of mind. I use it on my patio door - lets me crack it open for fresh air while keeping the security intact. The mechanism is smooth enough for quick exits but sturdy enough that my toddler can't budge it (huge plus for child safety!).

The only drawback? The alignment tolerance is razor-thin. If your door isn't perfectly square, you might need some creative adjustments during installation. But once properly mounted, this little lock outperforms many pricier alternatives.

For under $20, it's an absolute steal if you need basic yet reliable added security or childproofing. Just measure your door clearance twice before ordering!