Canada post is a lot more popular than what i hear about usps. I'd say most packages that aren't Amazon (like 30% of amazon too) go through canpost, until now at least it's usually the cheaper option, and at least in my area much less likely to damage a parcel. They also have more locations. In my town of 600k there is 1 FedEx package pickup with no transit options or bike lanes, but canpost is in every other drugstore.