I had a failure in one of my two twenty-one year old garage door openers. Instead of repair (for which parts were not available), I decided to replace both. Although fairly expensive, they did a good job of explaining alternatives. Austin, my installer, did a very professional installation of the two Genie 2128B belt-drive openers with battery backup in approximately two hours. The only issue I had was that only one opener manual was provided and it did not have two Serial Number stickers, only one. I didn't realize that until I went to fill out the Genie online registration for warranty. So, I had to call and request the second S/N sticker information, for which I am currently waiting. Had it not been for this, I would have given a 5-Star rating.