However, I've seen some airbnbs that have a pin door code or a key fob, which are arguably more secure than a regular key lock but have less chance of failure in my experience.
For Airbnb, etc., you'd have to change the combination regularly (which is easily done in about 30 seconds) but at least I don't have to worry about getting locked out if I forget my phone, it's battery is drained, cell service is out, etc.
Many Airbnb owners do not.
https://www.techdirt.com/articles/20120823/10320820137/hotel...
But I've been quite happy with my smart thermostat and sprinkler controller.
Maybe the difference is in these cases, a controller has been replaced with a smarter controller.
It's a natural line of progress, and there have been obvious deficiencies with the logic of the "dumb" controllers since their inception (heating the home when you're away, watering while it rains)
I never think about my deadbolt unless I am opening my door. I never think about my smoke alarm unless starts to chirp because of a low battery. I never think about my light bulbs unless they burn out.
Any "smart" features, like notifications or a phone app, are going to make me spend more time thinking about these products than I care to, even if they are working perfectly. Failed OTA updates make things even worse. That door lock is going to need to introduce an extremely compelling new feature to convince me to spend time thinking about such a basic component of my home's infrastructure.