I've been thrilled with the Nicoone Ultrasonic Pest Repeller! It’s been a perfect solution for our pest problem without using any chemicals or traps. The plug-and-play setup was incredibly easy, and the quiet operation is a huge bonus. Within a few weeks, we noticed a dramatic drop in pests around the house. It covers all our rooms effectively, and I love that it's safe for our family and pets. The built-in nightlight is a nice touch too! Highly recommend for anyone seeking a clean, hassle-free pest control option!