The only negative is the sensitivity of the cable, which if you bend it a little, it breaks internally and does not provide power. Other than that, flawless response.

It does what it says, just be careful if there is drywall. In my case, it detects while I am in the next room and the partition is drywall.

Good relative solution for presence detection. It requires attention to placement as even on low it has high sensitivity and picks up fans, doors, and generally anything that moves... It works perfectly with zigbee2mqtt.

Sometimes it takes a while to send the signal that there is a person and/or movement, resulting in a delay in activating the scenario you have built on it. If you take it out of power for a few minutes, it returns. It is not common, though, and it wouldn't stop me from buying it again.