Going Strong Since 2008
I have had the same Elite selective door since 2008. The only time I used the second disc that was included was when I couldn't find the cat's collar. Once I found the collar, I resumed with the original disc. It is just now, 7 years later that I am using the second disc and ordering a back up.
ProsEasy reset if needed. I change the batteries about every 4-6 months only because it gets a ton of use. No reset up required with battery change. I love it and when it finally does wear out, I will replace it with the same company and product.
ConsI can not think of one bad thing to say about the product.