I installed a pair of these, and haven't looked back. Yes, there is a little bit of a curve with rewiring your opener, but there is great documentation available, and safety in the fact that if you mess up, your door just won't open. If you snap a picture ahead of time, it's easy to undo. And from there, you can hook it in to Home Assistant or HomeKit and do whatever you want, which is amazing. My Home Assistant notifies me when the door has been open for 5, 10, 30, 60 minutes, as well as if the sensor is obstructed for the same intervals.