“ After moving into an older apartment building, I discovered it had a longstanding roach problem. Initially skeptical of ultrasonic repellers (tried a cheap one before with no results), I researched extensively before choosing PestLab based on their reviews and technology. The difference was noticeable within days, I was seeing fewer roaches in the bathroom and kitchen, and after about one week, they disappeared completely. What impressed me most was how the devices covered a large area despite their compact size. As someone with environmental concerns, I appreciated the chemical-free approach that didn't involve spraying poisons around my living space. I've kept them plugged in as prevention, and it's been eight months pest free! ”