O'Reilly Auto Parts is a reliable auto parts store that provides excellent customer service. Customers have praised the helpfulness of the staff, particularly Jeffery and Michael, who have gone above and beyond to assist them with diagnostics, advice, and even installing wiper blades. The store is known for its knowledgeable and friendly employees, who are willing to help customers with their automotive needs. While one customer felt offended by an employee's perceived behavior, the overall sentiment towards O'Reilly Auto Parts is positive, with customers appreciating the store's willingness to provide quality service and support.