The opener I just replaced was a 20yo screw drive. Genie USED TO make excellent products. Everything I've read, and now been told by 2 installers is that Genie is using cheaper parts and their openers don't last 1/2 as long as they used to last.
Both of the installers I spoke with indicated that the Craftsman openers are made by Chamberlain (aka Liftmaster). If you are interested in a Craftsman opener, Lowe's carries them.