My current house is 3 stories with 2 stairways. That’s 6 switches just to turn on the stairway lights. Why do I need a scene controller instead of just 4-way switches? Because I want to be able to also turn off (or otherwise set “away”) an entire floor. If I’m the last one out of the basement, for example, I want to be able to not only turn on the stairway lights, but also turn off all the basement lights. If this scene controller has a dimmer built in, I don’t need to expand the electrical box, it’s a 1:1 replacement.
I’ll also put one at each entrance to the house for landscape lighting control and for setting the house to away, panic button, etc…
And I’ll probably use 4-5 for large rooms with multiple lighting circuits for doing scene lighting.
So that’s going to be 23-25 for me. And that’s just retrofitting.
If I was doing new construction, I’d probably use this with smart bulbs or smart remote dimmers instead of having multi-gang boxes. For instance, I have a 23 sq ft half bath that has 4 switches in box. 3 lighting and one fan. That’s just stupid. I’d rather have a control like this that has labels for fan timer and scene lighting control. That would add probably 8 more orders from me.
I think the key issue will be labels. If those are cheap to get pre-engraved and/or easy to DIY, the use cases open up a lot.