Had 2 Craftsman openers that were 22 years old, when one failed (gear shaft bearing broke). Decided to replace both, and could not be happier with choice of Genie models. Previous units were 1/2 HP, and new units are also 1/2 HP. More than enough oomph to lift single, 80 lbs doors each. When deciding between belt drive and chain drive, you need to also take into account noise sources from doors, tracks and rollers. If these are noisy, paying more for the quiet belt option is wasting money. These chain drive units are exceptionally quieter than the older chain models, that I don't know how much quieter they could get with belts. Installation was a breeze. Instructions exactly depicted steps involved in installing. Was able to reuse the ceiling mounting brackets and down-braces, although these units were shorter and narrower than Craftsman units, so the down-braces are slightly canted in and forward. Units do not come with outdoor keypads, which is a good thing (not needed). Installed MyQ sensors and app on cell phone to control from outside when necessary. Syncing sensors to openers was a breeze. Only anomaly during installation was that one of the obstruction sensors mounted near the floor kept flashing red, but after everything was finished, it corrected itself and works fine now. Was able to reuse the door mounting bracket and L-bar that hooks the trolley to the door, saving a little effort during install. Be careful when setting up and down travel limits; it is possible to drive the trolley into the opener when setting up limit (i.e. going for max opening height). All in all, clearly a 5 star winner.

I replaced my last opener after the gear snapped of its axel. This unit was easy to assemble and I replaced my old unit in about two hours. Fortunately, I have angle iron and had some flexibility to where it's mounted. This is because it sits about a foot closer to the garage door than my prior unit. The only issue with this was the cord was too short to reach my existing outlet. I sovled this problem with a 6" extension cord.

All "smart" garage doors are a unreliable, and will stop working with the company decides they are tired of running their cloud service. I use a raspberry pi to make my garage smart. It worked fine with the last opener and fine with this one too. It simply closes a relay to simulate pressing the garage button.

The size was perfect for a single door and it's quiet, barely audible.

It was easy to install but the rail beam is wobbly.

This garage door opener actually went together very easily, no thanks to the instructions.
Putting it together and hooking everything up was not that hard, but the lack of good instructions made it harder than it needed to be.
It is incredibly quiet compared to my old unit.