O'Reilly Auto Parts store #869 in Allen, Texas is a convenient location with good hours. The first impression is that most employees have knowledge of vehicles and work cohesively as a team in all types of weather to make sure customers get the right parts, installed or tested within protocols. The store offers Free Store Services like battery testing, wiper blade and bulb installation, and a free Loaner Tool program. Staff are friendly, professional, patient, and helpful, often guiding customers on how to correct problems and going above and beyond. They are knowledgeable and can help find specific parts, even ordering items not in stock. The store is highly recommended, with employees providing practical solutions and working well to ensure high ratings. While battery returns can take time, there is a good reason for the process. Customers report positive experiences with services like headlight changes and issue resolution, leading them to return.