Playing around with things to tweak more is hobby time to me.

Setting it up for others to use it is another. The comment about Apple Homekit "just working" has some merit. If it's not automated in the background on a schedule, and on demand, there's some merit to it.

Maybe there's a sweet spot of not having to hack every little thing.

My smarthome setup for example is centered around becoming an appliance of the home that stays with it, and making design considerations for that.