What a nightmare piece of equipment. A plumber recommended it because electricians couldn't fix the timer/thermostat connection of my boiler. So the old timer has been replaced with the Nest and I've already spent HOURS of my time trying to get the thing to work, with no luck. I have to press the boost button to start my boiler, so there's no way to put it on a timer, and I can't control the temperature. I used a HIVE in previous properties and it was much better.
