Just for future reference if/when the unit goes bad for real...
The best overall units are made by Liftmaster. Liftmaster is the "professional" line of the main company Chamberlain (which can be bought at some home-improvement stores). The low-level of this same brand is Craftsman. Chamberlain and Craftsman branded units are considered "retail" units. They are packaged with a 3-piece rail to fit into the retail-box and into the trunk of your car. Liftmaster uses a 1-piece, solid rail. A solid rail with no splices is much sturdier and less prone to failure from flexing. Go to
LiftMaster to see everything they have to offer. They are also about the most advanced units today.
Genie is made by Overhead Door. Genie and Overhead branded units are both available in "retail" and "professional" version with the rail differences as mentioned above. Genie makes a good, and popular opener, but they are not built quite as well as the Liftmaster (and some people will certainly disagree with me).
Marantec is a foreign based company and they do make a very nice unit. Their units are known to be hard to program, they operate much slower that the others, but they are very smooth and quite. I`ve had customer have new Marantec units removed to install one of the above units because the Marantec moved so slowly that they didn`t like it. It`s just something to get used to.
Wayne-Dalton branded openers are complete junk...plain and simply. We have a failure rate of more than 50% and do everything we can to talk people out of buying one. But some people want what they want.
There are a few other brands, but since they aren`t mentioned (and they are no better), there`s no reason to mention them.
Final consideration is that many brands sell units with AC motors or DC motors. They sell chain drive, belt drive, screw drive, and direct-shaft drive.
The overall most-popular and well liked unites are the DC MOTOR, BELT DRIVEN units. Worry free, smooth, and very quite. As easy (or hard) to install as any other type of opener. Of course there`s tons of other options and setups, but any DC, belt drive will serve you very, very well.
Just my 0.02 from being in the door/opener industry for many years.