Excellent people, professional work
There is the job done correctly and then there are all the small things that add up to a good experience and confidence and trust in the people doing the work. Things like always calling ahead, being on time or calling with specific delays, being polite, listening well, eager to show off their work or have it inspected. Great customer relationship skills are important, and of course care and competence doing the work. I think the guys from Robertson\-Morrison were really excellent. Mission accomplished.