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Title: I like it...
Review: Quiet, solid, good looking. Took a few hours to install b/c mounting rails are front/back instead of side/side but I just mounted an 18"x18" piece of plywood to ceiling joists then mounted the angle brackets to that and the door opener unit. Works great for 7' doors. I read about the 8' or higher door issue and think that indeed the extra $50 for an extension kit is a rip-off. Chamberlain, or whoever actually makes the product, should just have two models - standard and extra-long - or whatever. Why throw a perfectly good belt into the landfill? Other than that personal peeve, unit made me happy.
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