Effectiveness various by dog
I've seen some sites where the most common ratings are 5 or 1. Now I have personal experience with why. I bought my Barkz buddy in 2020 for a Pomeranian with a real barking problem. Hated my roommate. Barked nonstop whenever he thought he might be coming home or when he heard a doorknob click upstairs. It was a real disappointment, did not work at all. Now I have a pair of two-year-old rescued Pomeranians who get easily triggered into barking like crazy with high-pitched ear-splitting barks. And this device is a miracle. I press the button, and they instantly stop. I'm so happy and relieved.