hello @B79 & welcome to CC.
Both options are useful either way.
One never knows when the keypad may not work for whatever reason, power outages etc.
You can always leave a key out in a lock box or elsewhere inside that they can access.
Maybe ask them to leave it inside & use msg system where to leave it.
As an aside, make sure when you start listing your property to use the digits of your guest
s booking or phone number and change entry codes each time for everyone's peace of mind & security.
All the best