AutoZone Auto Parts in Denver, CO, is a well-known retailer of automotive replacement parts, including new and remanufactured hard parts, maintenance items, and car accessories. Customers appreciate the store's organized and clean environment, with many noting that the website accurately shows the parts needed. The store offers helpful services like battery checks, and some customers have had long-lasting batteries purchased there. However, experiences with staff vary. While some employees provide great service and assistance, others are perceived as busy, unhelpful, or displaying attitude, especially during night shifts. Customers have found the app helpful for getting additional support when in-store help was lacking. The store is busy at times, which can lead to longer wait times, but overall, many have been returning for years. Improvements suggested include better customer service from staff, especially those with seniority, to enhance the overall shopping experience.