O'Reilly Auto Parts is noted for its clean store and helpful, knowledgeable staff. Customers report positive experiences with returns and appreciate receiving tips on better brands and cost-saving options. The staff is described as friendly and willing to go above and beyond, such as by installing a purchased battery for a customer with physical limitations. While one shopper found a purchase straightforward and efficient, another noted a slightly chauvinistic attitude from an employee but completed the transaction quickly. The store is also helpful in sourcing rare parts, assisting customers in locating items online when they are not in stock.