I have only used this anti snoring device for the first time, but I was impressed by how easy it was to use. The lightweight design makes it comfortable to carry around, and I can easily keep it with me at home, in the office, or when traveling. It sits under the chin and attaches around the ears without needing anything inside the mouth, which makes the setup feel much more convenient. The different vibration modes are also useful becauseI can adjust the intensity to find a setting that feels right. I noticed a positive difference during my first use, which made me feel encouraged to keep using it. The device feels reasonably well made, and the controls are simple to figure out. I was happy with how straightforward the first use felt and how little effort it took to get started.