My 2-3 year old Brother color laser printer started making a funny noise yesterday. I emailed Brother NZ on Sunday, who replied within an hour. They said it was a fault and asked me to call to arrange a time to service it. It has a 4 year warranty because I've only used Brother genuine toner - I'm low volume so I've only had to replace the black one once.
I called up, made arrangements, and their on-site service guy came this morning. Took him ten minutes.
From call to fix was less than 24 hours. That's impressive!