To identify model of Liftmaster garage door opener

you won't find pricing suggestions here. pricing recommendations become out of date too quickly.

in my experience, if you're looking for smooth operation then you need to concentrate on the door. make sure it opens and closes smoothly. a bad garage opener will still open a well-adjusted door smoothly, but a good opener won't help a poorly adjusted door.

that being said, i really love my genie screw drive. they make a couple of models that open the door 2-3 times faster than it closes.

Excellent article! I just had my GDO remote drop from 30+ feet range to where I had to at the garage door - and it took several tries to cause the door to open. I had just installed a wireless indoor security camera and that was the culprit - unplugging it removed the issue. I tried various increases of GDO antenna length but no improvement. I was in the process of using a window screen on the opposite side of the wall when I found an article about an RFI kit - rather than buy the kit which was a tad pricey, I bought several 5mm ferrite cores that snap onto wires. 5mm based on the diameter of the wires they'd be used - they come in sizes 3mm to 9mm and possibly larger. I tried the camera power cord and there was no improvement - I then put a core on the manual switch wires where they connected to the GDO - that bought me another 8 feet of remote range. I then also added ferrite cores on the same wires near the manual switch and I'm out to 25 feet. The camera must be throwing off harmonics of the 2.4 GHz signal and the manual switch wires were acting as antennas. I'm still going to place the metal screen on the garage wall opposite the camera location in the house to try to block the RFI more yet. I hope this helps anyone with a similar situation as these cameras are more and more popular for nurseries, pet surveillance, and home security.