I can always tell which of my neighbors bought Mighty Mule gate openers....they are the ones with the opener unhooked and the gate wide open all day and night! You really do get what you pay for in gate openers. I've had a U.S. Automatic Patriot for going on 8 years now, and all I've done is replace the battery a couple years ago. This thing is opening a 16 ft pipe gate that weighs over 500 pounds, and doing it at least 8-10 times a day, with us leaving for work and the kids leaving for school. They cost about 2 1/2 times what the Mighty Mule sells for, but they are 100 times less maintenance and 100 times less likely to fail on a cold rainy day or in the middle of the night. I put my on myself, including the solar panel and (2) keypads. Need some welding skills, but after that, its a pretty simple install, especially if I was able to do it.