Chamberlain KLIK1U remote control

I have had this unit for 3 years now. It still works great on the original batteries. It was pretty simple to program with the instructions provided

the unit is bulky compared to the oem remote, but you can still attach it to your windshield visor no problem

I was able to program two different models to this remote effortlessly ; Instructions are clear which is hard to find on products such as these

The range is not great, but that is not an issue unless you are forgetful and expect to close your garage after you've already pulled out of the driveway ; The unit is bulky, see other comments