Really slow support service, asking the same questions over and over and taking days to respond. Phone lines always have this weird, several second delay on them that means conversations are really awkward. Products don't work as they should. Very finicky to set up and often the heating just doesn't come on - sometimes it comes on for no reason!. Never did get to the bottom of my problems with underfloor heating. I've just given up. Over £1000 down the drain. Wish I'd gone with another company now but too late.....