I can pretty much confirm this 100%, I had an A/C Circutboard fry on the day he installed my alarm, even though it was completely unrelated he went out of his way to fix it for me, and in the end we got a new circuitboard for a steal and had it working again.
He could of said, "Hey, not my problem" but no, he helped me out and dedicated a whole day to fixing the problem, I cannot stress how professional and meticulous he is in his work.
If you want a good installation you go to Chris Rogers!
P.S. Chris if you're reading this, the A/C is working perfectly, hasn't skipped a beat, currently at workshop getting Motec M400 fitted and final tune