Advance Auto Parts, located at 1260 Jennings Station Rd in Saint Louis, is known for its helpful and courteous staff, offering a range of automotive aftermarket products and free services. Customers frequently highlight the professional and knowledgeable employees, who go above and beyond to assist with diagnostic tests and ensure they receive the correct parts. Many reviews note the quick service without long wait times, enhancing the overall shopping experience. The store provides valuable services such as free battery testing, free engine code scanning, and free installations with purchase, making it a convenient choice for car maintenance. Customers appreciate the friendly atmosphere and personal attention received from staff members, who are eager to help solve problems. Advance Auto Parts also offers a loyalty program, Speed Perks, where customers can earn points toward discounts. Overall, the combination of quality products, exceptional customer service, and additional store services makes Advance Auto Parts a preferred destination for automotive needs.