This is awesome! Love the idea of builder mode being integrated with regular game mode, like Minecraft.
I'm not sure what you guys are using for the engine, but the primary feedback I have is that it feels too sluggish. For a second-home virtual space, it'd need to feel really good moving around in it.
Right now on my 2019 Macbook, in a one person blank room, I have frame rate drops moving around where my character will skip spaces. And in the HN room going to a different place (e.g. to swimming pool), I was walking around in darkness for 5 seconds about to exit thinking there was a bug before it finally rendered. Would recommend you guys really nail constant FPS as a priority.