I've used self service bag drops in many locations with Air Canada, Delta, Lufthansa & Flybe. For me, only the Flybe one's have ever worked properly without assistance. As the lady at AC manual desk in YVR said...Thank God they never work right, or I wouldn't be here.
I'm sure eventually this kind of thing will work.
It would be great if those that arrive by train could self bag drop at the train station- especially as the station is so remote from the terminals and so far- the connectivity from Station to T3 is abysmal.