I have had this door installed for two years now and have had ZERO problems. I was honestly super worried about ordering one because it isn't a big company and I wasn't sure how long it would last or if they would stand by their product if it broke. It has worked without fail for coming up on two years. I had a problem once with programing it and I called the company and they walked me through it on the phone right away. It was user error but they were super nice about it and took the time to walk me through it. The peace of mind that this door has given me is priceless. When I first installed it, I was very worried that it wouldn't work one day and I would come out and find all my girls dead from a predator getting into the coop. I would go outside with a flashlight every night for a month to make sure that door closed! I still check from time to time because it is mechanical and nothing mechanical is 100% fail safe but I rest easy and don't have to walk to the coop every night or morning to let the girls in or out. So worth it!