Very responsive Canon service

Not exactly sure where to post this, but I just wanted to compliment Canon service. I had an issue with some smear on the mirror of my 5D2( my fault in changing a focus screen), and also some fine dust from shooting in a dusty environment.

I sent the body to Canon on NJ by UPS. It arrived in 24 hours as I'm close to the service center. What was surprising was that I got an email on the same day it arrived, indicating that the initial inspection showed the cleaning and/or repair would be warranty-covered, and that I would have the camera back in 7 working days.

I was just surprised at the quick followup. Nice to know my baby is in good hands.

P.S. It came back today, Friday, repair complete door to door in 4 days! They sent me update emails and sent it Fedex overnight. Can't believe the speed.

I just sent 3 items to the Canon Service center here in Irvine. Two of the items were sent back in 2 days. My 5D had an electrical problem and required a week in the hospital. Now it is home and shooting better than ever.

I'm in the East, I'd to send my lenses to recalibrate sometimes

whats the cost for cleaning and recalibrating anyway? My still under warranty, about to expire. Is it a good idea to send it over and have the clean it or touch it up?

What type of paperworks do they need to service your lens? warranty card or receipt or both ?