The only downside is that they seem sleepier than usual. I'm going to be totally honest here, i have no idea if this helped or not, which probably means it did help.

The product comes with refills, so maybe once the refills run out, i won't plug another one in for a while. Plugged it in a central area of our ~900 sq fr apartment, with nothing below or above it. Amazingly and thankfully the tension level was signif...  Read More

Not sure if i would purchase this again to give it another try as it is a bit pricy. It runs out fast and needs refills. Didn't solve my problem. Couldn't feel comfortable plugging it in ever again.

Thunder did absolutely nothing for either cat & now i have to spend extra on laundry. They continue to hiss at each other through the door. Even though cooler weather and window closed he has habit of marking territory by peeing on my bed.