After testing the Sylfu Automatic Liquid Soap Dispenser for weeks, I'm convinced it's one of the best hygiene upgrades under $20. The infrared sensor reacts lightning-fast (0.25s!) without false triggers - even when reaching past it for my toothbrush.

The 4 adjustable volume settings are genius. Level 1 (0.5g) is perfect for quick handwashes, while level 4 gives a generous dollop for dishwashing. No more guessing games with manual pumps!

What surprised me most was the battery life. After a full USB-C charge (took 2.5 hours), it lasted 6 weeks of family use before the handy LED indicators showed 20% remaining.

The visualization window solves two problems: checking soap levels at a glance (no more surprise empty bottles) and confirming you've got the right soap color if using multiple types.

Minor gripes? The touch-sensitive power button sometimes activates accidentally during cleaning. And like some reviewers noted, thicker soaps may need slight dilution - I found 3:1 soap-to-water ratio works perfectly.

For $18, this dispenser delivers premium features usually found in models twice the price. It's transformed my messy kitchen sink area into a drip-free zone - worth every penny for that alone!