Need an ack aside from the system since the response might take a few moments, maybe a "share and enjoy" in a voice that sounds like it is smiling.

The biggest use for me is 'guests will be here soon, turn on the lights in front of the shed where they will park', then latter when they are gone turn them off. I can't see the lights from the house and the logical place for a switch isn't in the house. Where I can see the lights a manual switch is better. I don't have most of my lights automated. The ones that are, are that way because I can't see them from where I'd want to check and control them

i thought it was specifically when using voice - ack/nack

but it might be preference... some people like clicky blue keys, some like silent red keys on their keyboard for example.