Sheetz coffee is great - much better than average convenience store coffee. The automatic creamer and sweetener dispensers, when they work, seem cheap and not in the same league as the coffee. The creamer is not as good as that in a tub or even a carton or a carafe.
Most convenience stores which sell decent coffee still offer individual sugar/seeetener packets as well as creamer tubs. If it’s a cost issue (which seems negligible) charge a few cents more. Other (lesser) convenience stores do, charge the same, and presumably still make money.