Professional, friendly and thorough. I would thoroughly recommend Martin. He kept in touch beforehand and was flexible with dates/times, his work was second to none, actually wiring in the cooker rather than using the plug and left the place spick and span. Advised of next steps, the Gas Safe certificate coming through the door and to contact him if it hadn't. Extra brownie points for doing it whilst my furniture was being moved in and for nipping out to get the wall plate.
Thanks Martin!