We mounted the FP2 on the ceiling of our home office to replace a PIR motion sensor that was turning the lights off every 20 minutes whenever we sat still and typed. The difference was immediate. The FP2 kept the lights on as long as someone was in the room, even when we were just reading.

Setup took about 25 minutes. You need the Aqara app, a decent WiFi signal, and patience for the initial zone mapping. Drawing the zones on screen is a little clunky on mobile, we eventually just used the iPad since the bigger screen made the zones easier to edit.

The real win came when we split the bedroom into two zones, one on each side of the bed. Now the bedside lamp on the empty side doesnt turn on when someones still asleep on the other. Thats the kind of thing PIR sensors just cannot do, and its worth the setup time.