I did try a bit of it years ago when it was just getting popular but I quickly realised how many constant little frustrations and frictions it brings. these days it's so much worse because every vendor wants to tie you into their ecosystem, so you end up having to enter into adversarial relationships with products if you want to gain local control over them.

monitoring on the other hand is pretty neat.

I still want to finish designing my whole-house mains power monitoring system. there are some existing projects that do this but I looked at the schematics and they do a bunch of things wrong, especially around the CT sensing.