O'Reilly Auto Parts is a store where knowledgeable staff, especially Maria, provide helpful service and expert advice on auto parts. Customers appreciate her expertise, which stands out compared to less knowledgeable staff. While some reviews mention poor customer service experiences, others highlight dedicated employees like Sarah and Brian, who go above and beyond to assist customers. Sarah efficiently ordered parts and ensured timely delivery, even during busy times, showing her commitment. Brian is recognized for his helpfulness, taking the time to locate parts and assist with carrying items to the car. Despite some negative reviews about the overall customer service, many customers feel that employees like Sarah and Brian make a positive difference. The store's staff is often busy, but they still take the time to help customers, and returning customers are remembered. Overall, the store is valued for its knowledgeable staff and employees who work hard to deliver good service amidst a busy environment.