Chachacha said:
Well enough

I am now a Permanent Resident of Canada! Woo!
So here's my experience.. I went along with my Wife and Father-in-law down to the border with the US (Pacific Highway) with the plan that the FIL would drop us off at the border so I can flag pole with my Wife as company and he'd carry on down into Blaine to check his post boxes and pick up some Powerball tickets ($900 million USD would be nice!). Border booth guy told us to pull over to the side but he saw no issue with my FIL carrying on down to Blaine. As we pulled up however we were told we all had to go inside so the office can confirm our situation etc (In which they were confused why FIL was sent in as he's cleared to cross the border..). Anyway, FIL left to go check his mail while a nice US Border officer called Keene congratulated us and filled out my refusal of entry form so I can flag-pole, and sent us on our way to walk over to the Canadian office.. which was kinda surreal as we walked over in front of all the cars waiting to cross the border.
Found our way to the Canadian office, and was seen immediately. I handed over my passport, visitor extension visa, COPR, and accompanying letters to a nice lady whom I forget the name of. She went through our documents and found that the 2nd COPR sheet (Which I found out is supposed to be an exact copy of the first apparently) was missing it's lower half. So whilst she figured out what to do and discuss with her supervisor we were asked to take a seat. It was slightly daunting as each time we looked over there'd be another border security officer looking down over our forms, totaling eventually to 5 people standing with confused expressions. Mild panic setting in at this point.
We were called back up and she explained again that it was missing the lower half, so they tried accessing it from their system to reprint, but for some reason it wouldn't send to the correct printer. Solution they found were to just photocopy the complete form and staple it to the half sheet with stamps and dates etc on both explaining the situation. I was asked a few confirming questions.. No I do not have any convictions in any countries, no I do not have any dependents, and yes I have taken a medical. She asked me to write down on the form to confirm my address, in which I just confirmed the information already on the form as correct (they didn't ask to see a utility bill or anything. Perhaps she made an error or perhaps me living at the same address that the documents arrived at was enough).
That was essentially it, she handed me an information sheet of "what to do now?" explaining the SIN & Medical card I need to sort out and sent us on our way with a "Congratulations, and welcome to Canada". We left and met up with the FIL at the visitor parking on the Canadian side of the border and headed home.
All in all the entire process took less than 30 minutes. The Canadian office side, even though of the confusion of having improper paperwork didn't take much more than 10 minutes.. I was a little put out I didn't receive a little Canadian flag though!