Home Assistant really hits the right spot on the "enthusiast" vs "product" spectrum for me - it's flexible and configurable, but also easy enough to set up that I basically spent almost no time actually making it work.
I've got it hooked up to a Z-Wave Hub so that I can control mechanized blinds with HomeKit (where no native integration exists), all the way over to Volvo On Call to report where my car is, how much gas is in the tank, and what the odometer reports. It's got a great community, and isn't too difficult to extend that it's not worth mucking around in the guts when I really want something to work.
I've got it hooked up to a Z-Wave Hub so that I can control mechanized blinds with HomeKit (where no native integration exists), all the way over to Volvo On Call to report where my car is, how much gas is in the tank, and what the odometer reports. It's got a great community, and isn't too difficult to extend that it's not worth mucking around in the guts when I really want something to work.