Well I finally got the lens back. Timeframe was something like this -
Sent from TX to CA, 12/11
Arrived at Canon 12/15
Approved estimate 12/17 (within minutes of being notified)
Constant phone calls, emails for the next two weeks asking for status updates. Canon was also closed for 3 business days due to the holiday.
Item prepared for shipping 1/8
Shipped out 1/9, overnight
Arrived 1/12. So over a month, door to door.
Some notes about my experience, hopefully these will help someone else make a decision.
-The web tool where you check the status of the repair, is useless. It said "You have approved your estimate" for 3 weeks.
-The reps on the phone were generally very helpful and courteous. But of course they will not commit to timeframes, or really be able to give you much more information, than "your item is with the repair department."
-Reps were also very responsive via email and generally had a bit more information, as I suspect these emails actually go to the repair department. On one occasion they gave me a vague timeline, but again would not commit to it.
-They were kind enough to recognize that this repair was taking longer than usual, so they upgraded me from 2 day shipping to overnight shipping.
-The lens is repaired and I'm happy with the result. Focus assembly had become misaligned.
If I had to do it over again, I'd do CPS in a heartbeat. Gold obviously confers you a much higher status and quicker turnaround, I would have at least registered for the silver level though. (Not sure that would have made a difference, aside from having the 24/7 toll free number) Gold level, even at $100, would have saved me $40 off the repair price, and then I could probably sell that CPS strap they give you on ebay to make up the bulk of the rest. That, plus the fact that you can get equipment cleaned and serviced quickly makes it a bargain IMO.
I'm probably not going to join right away, but I certainly will prior to sending anything else in.