The United States Postal Service provides reliable and affordable mail and package delivery. Customer experiences at retail locations vary. Some representatives are noted as friendly, eager to help, capable, quick, efficient, and professional, even when managing long lines alone. Other experiences mention employees can be brusque or have a bad attitude, with instances of being ignored. There are also notes about potential discrepancies in posted opening hours. Overall, the service is committed to processing and delivering mail securely to addresses nationwide and worldwide.