Canon garnered a bad reputation for tech support when the original iPF x000 line of printers came out a few years ago and that reputation has hung around longer than deserved. My first call to them late last year, regarding a minor problem on my 8100, was handled promptly and a repair guy arrived within two days and fixed the problem.
Today, I called again about a message popping up that requested a cleaning for the right side head (although no indication of a need for it appeared in printing.) Several cleaning cycles later, it still was there and I called Tech Support. I was immediately connected to a live human who directed me to print a status sheet and with no further ado, announced that a new head (free, under warranty) would arrive tomorrow, along with a complimentary cup of coffee and a croissant.
OK, I made up that bit about the coffee and pastry. I guess I've been spoiled and am now expecting too much.