The United States Postal Service (USPS) is the only organization in the country that regularly delivers to every residential and business address. Processing and delivering 47% of the world's mail, USPS manages over 30,000 retail locations and constantly works to improve customer experiences. Customers generally praise the knowledgeable staff, with one reviewer noting that an employee named Don was able to locate a missing parcel. Another customer had an issue with a package delivery and was promptly contacted by their local USPS location, receiving excellent customer service from an employee named Chris. However, the high volume of customers can lead to long wait times and access issues at some locations. Parking is a common complaint, with one reviewer noting that employees take up all the spots, forcing customers to find their own parking. Despite the crowds, the staff is described as nice and engaged, though they could potentially move customers through the lines more efficiently. Overall, USPS provides secure, reliable, and affordable mail and package delivery to millions of addresses nationwide, with dedicated employees working to assist customers, even during busy times.