O'Reilly Auto Parts is highly regarded for its excellent customer service and knowledgeable staff. Customers appreciate that staff go out of their way to help find the right parts and provide helpful information about car parts and technology. The store offers a wide selection of quality parts at good prices, making it a reliable place for auto needs. While some items, like specific batteries, may not always be in stock, the staff often have suitable alternatives, and customers prefer shopping there over competitors due to better service and trust. The store's management, especially at the Lincolnway location, is praised for friendly and caring service. Overall, customers enjoy shopping at O'Reilly Auto Parts because they feel valued and confident in the assistance they receive, making it their favorite store for auto parts and supplies.