It's been a good run. CPlus was my first FF program, partially because AC had the nerve to charge a registration fee ($25 IIRC) for AP. Also CPlus had better rewards right from the inception. CP was the first to intorduce a J class product, on dedicated aircraft, at Y prices. Better customer service, which also benefited from the integration of WD.
All in all, we are loosing a lot of history with the demise of CP and CPlus. Let's hope AC is up to the challenge of building a world class airline.
My hat's off to all CP employees that have made air travel a pleasurable experience over the past 15 years.