Beware when booking - they oversold my bus to DC, leaving at least 8 people stranded at the station. They gave us non-existent options: we could 1) ride to Harrisburg & catch a transfer, bearing in mind we had 3 hours before the transfer bus left Harrisburg for DC, and it's a 4 hour bus ride from Pittsburgh to Harrisburg. 2) We could wait 5 hours for a later bus - which turned out to be sold out. The drivers, managers, and assorted personnel did not care at all.