Just FYI had first experience to try the arrivals lounge at YVR a couple of weeks ago. I was flying discounted economy from HKG and have an Elite card.
They didn't publicize it, (at least not in the back of the plane!) but when I found it - VERY nice - aside from a shower, you can get a shirt/suit pressed, shoes shined and a breakfast/meal.
Interestingly enough, they were logging those who checked in - seems like there was only two of us at that time who used membership (i.e. E or SE) to get in - rest were all flying J class (and not even a whole lot of them)...
Angus