Re: Hmm
1)It's smart because it connects to my phone/whatever... that's all 'smart' means in 2019 and you know it.
It does also have the function to learn how long rooms take to heat up and cool down, so you tell it when you want the room to be warm and it knows how early to turn on/off to achieve that. Haven't used this much ourselves.
2)It's cheaper because our heating costs are reduced since we fitted it.
3)It's more comfortable because the rooms we spend time in are now warm despite 3) when previously, we spent all day shivering to avoid crazy heating bills.
4)It's more convenient because we can control every room separately. Our bedroom can be set to be warm when when we're in it, my home office can be set to be warm 9-5, our living room can be set to be warm 5-11. The rooms we don't use much can be set to be cool by default, for instance we have a dedicated film room so we only turn the heating on when we want to watch a film.
For all those downvoting just because it's IoT or 'smart', well I don't have to connect it to the internet at all and can still set schedules per room, etc. But, it is actually convenient when we're both out and deciding what we want to do in the evening, to press a button on my phone "watch a film" and the tV room heats up for 2 hours.
I was dubious of it before and we only got it for the cost benefits because we live in a large Victorian house with many rooms - even with TRVs either rooms are colder than we want them or warmer than they need to be. But as well as objectively making our house cheaper and warmer, I actually find it useful. Those with tiny new-build flats and/or limited imaginations wouldn't benefit from a multi-room heating system for sure.