Is Coinstar a self-serve change counting machine?

Excuse me, but could you clarify something for me? In the paragraph that you mentioned, it states "Is Coinstar a self-serve change counting machine?" Now, my question is, does this imply that Coinstar machines are indeed designed for customers to use on their own, without the need for direct assistance from an employee? If so, then it sounds like Coinstar machines offer a convenient, self-service option for people who want to quickly and easily count their loose change. Is that a fair interpretation of what the paragraph is asking?