The question does not need to be model-specific - it's applicable to everything with a Lippert door on it. That said, we installed an RVLock keyless unit on our 2016 Reflection fifth wheel 5-1/2 years ago and moved it over to the 2020 Solitude when we changed rigs a year ago. We like it a lot. The only issue we've had with this lock is that the membrane over the number pad only lasts a couple of years exposed to the sun before it starts cracking around the most-used buttons. The membrane isn't expensive and is easily replaced. I change the batteries once a year.
Rob