While the staff have been pleasant (we've just had our first year check), and the boiler reliable, when you do need to get hold of them, it's very difficult outside a normal working day. So much for 24/7 call out service, the number they provide is the standard sales number, which can route you through to a servicing and maintenance line, but out of hours that has a voicemail that barks "Mailbox XYZ Recording". I've left a message, but I have no idea where that will be routed to, or if I will get a call back. So to summarise; - Good sales - Good installation - Poor after sales care