Public transport operators make significant efforts toward improving the quality of operations by upgrading and maintaining infrastructure and rolling stock, training personnel, and offering better and more responsive services to passengers. Among these responsive services is the extension of service at night (night-time extension) whose goal is to serve night-time demand for passengers. This paper examines, analyzes, and evaluates the performance and quality of the Athens Metro night-time service extension for a two-month trial period. Based on ridership estimates and extensive passenger satisfaction surveys, results indicate that the night-time extension attracted a considerable number of passengers who previously used their private automobiles for the same trips and that users were highly satisfied with the service.