They are magic and don’t require a neutral cable, unlike just about every other smart dimmer, which means they can be swapped in place of literally any light switch in any home.
If the Lutron hub is unplugged, the switches continue to operate as normal light switches.
They also operate as normal light switches at all other times. So no need to teach every guest how to control the lights.
They are HomeKit compatible, so you only have to deal with Lutron’s trash app when pairing new switches with the hub.