The cashier named Rocky had a hateful attitude as soon as I walked in the store. He didn't have very good decision making skills and very rude. I'll never go back in that convenience store until he's fired. The rest of the cashiers have always been very kind but Rocky was a jerk! There's plenty of other stores that have great professional skills are are actually eager to assist me so no more of that place!
I cannot speak for other Clark stores, but this one has products that are way overpriced. For example, a gallon of milk costs nearly $5.00 (and a half gallon is only $1.00 less)... I will say this, however: the store is very clean and the staff are very friendly and helpful.