21 Jan 2020
The self guided tour is great but you spend very little time actually riding the train. It is in fact a walking tour with an audio guide that follows the U-Train from Warschauerb Strabe to Gleisdreieck. The voice app provides a lot of detailed information but is clunky at times and the GPS does not really always coordinate as you move along. You are better off following the map and voice recordings for the best experience.