There's just too much choice and choosing the "best" route forward often leads to disappointment with drop-outs, failures, uncompatibility etc further down the line, if reading the automation forums is anything to go by.
I keep reading up on going the Evohome route for individual heating control but when you need to involve 3rd party apps with a distinct lack of security, change batteries in every TRV, put up with disconnects (still), unexplicable timer clock changes causing heating to not come on when scheduled, binding issues, etc etc, it just isn't worth the hassle.
I always come back to simplicity, effectiveness and above all security, no matter how intrigued or interested in technology I may be, and right now there appears to be a lot of choice to potentially become an expensive ballache with incompatibility just down the road.
Basic on off automation from my alarm outputs suit me perfectly for now and possibly forever, allowing voice activation via Siri on my Watch or phone for activation.