Pretty much the same as any Costco however this location doesn't have nearly the selection of clothing as the Markham location.
The gas station 'cattle lineup' is reminiscent of a boarder crossing but considering how busy it gets, it needs to be. Pick a line and stick with it but be prepared for a wait.
If you don't feel like waiting, other gas stations in the area tend to compete in price so it all comes down to how much you feel your time is worth.