O'Reilly Auto Parts is a store where customers often find friendly and helpful staff. Shelly, for example, is described as very friendly, knowledgeable, and willing to assist with questions about parts and installation. Another employee, Robert Norris, showed a willingness to help with battery installation, even when the part was not in stock, demonstrating good customer service. Nathan also provided great assistance in selecting parts and answering questions, making the shopping experience easy and satisfying. However, some customers noted that in-store customer service could be improved, as staff sometimes did not provide all the information needed, leading customers to seek help online. Overall, the store is appreciated for its helpful employees and good prices, though there is room for improvement in customer service consistency.