Had Hive with my old boiler. When that died and I needed a new boiler fitted I discovered my Hive receiver (2 channel for heating and hot water) would not run my new boiler (combi) and I would need a new single channel receiver, that’ll be £100 thank you sir.!!! Umm, actually I won’t bother thanks, I’ll use one of the competitor products and sell the Hive onto someone else..
‘Oh, I’m sorry Sir I’m afraid your Hive is registered to your property and cannot be moved to a different property without reregistering it at a cost of.. you guessed it.. £100..!!’
The end result being I have a useless Hive sitting in the box that my nice new Tado arrived in. Took me about an hour to wire the tado extension box to the new boiler and most of that was chasing the cable into the wall. The smartphone app is much nicer and faster/more reliable and it shuts the heating off when we all leave and switches it on again when we come home.