Circle K at 2275 S Buffalo Soldier Trail in Sierra Vista, AZ, is a convenient store and gas station that offers a variety of products for people on the go. Customers can enjoy a great cup of coffee, cold beverages, Polar Pop cups, Froster drinks, and fresh food to go. The store features premium quality fuels and has an ATM available. The staff is generally fast and friendly, with helpful service, such as a cashier going out of his way to assist a customer. However, some reviews mention inconsistent service, with complaints about staff being lazy or gossiping. Overall, Circle K provides good coffee and essentials for travelers, but experiences may vary depending on the staff on duty.