Best investment ever! No more rushing home to close up the coop. The door opener has worked in the most extreme temperatures from upper 90s to as low as -30f! I change the batteries about every 6-7 months. Never had an issue with a chicken getting stuck either, door closes super slow. I have a light weight wood panel door. Not sure what others are using but this isn't a guillotine...its not meant for a heavy steal door.
So I just got finished installing it today. Works just as it should. Only chickens are pretty stupid. My rooster just got it’s head trapped under the door as the door came down. On day 1. Doubt he will make it. Maybe the door should be made of something lighter so they can still move if they do this. Not real happy losing a rooster to the device that was supposed to keep them safe.