Am going to get a new combi boiler, I've had quotes from local installers/companies but they're so full of provisos - including one that won't be responsible for my radiators heating up post install - I actually had to get a friend who's a lawyer to interpret them for me. I've been talking to BOXT and their pricing and service sounds excellent. But it' seems so much better compared to my experience of local installers, I wonder if it's too good to be true. Anyone used them? What did you think? Any unanticipated problems?