Here's my timeline for a renewal from the US - SoCal
Sent FedEx to Gatineau courier address - 1/3
Arrived - 1/4
Credit card charged - 1/15
Received FedEx text notification that a package was on its way - 1/19
Received via FedEx International Priority - Signature required - 1/22
Passport was issued out of Ottawa, old design. My old, cancelled passport was sent in the same package. 2.5 weeks end to end is phenomenal, and a nice reminder of how great the Canadian civil service is in comparison to a lot of other places. Whatever problems they were having with timelines and demand seem to have been ironed out.
I was hoping for the new design. My US passport is the next generation design. It's got the same curling issues that others have noted with the new Canadian passport, but the passport and etched biodata page seem much more technologically advanced and secure. I just took my US passport on an extended trip overseas, and even with the plastic data page, I was able to cram it into a pocket just like my old Canadian one. It also flattened back out nicely after I put it in storage, so no complaints overall.