It was cumbersome to join tje group. The application did not recognize the three guests participating in the tour. Eventually, after complaining over the phone, we were able to begin the tour. The system to enter the tour is unfriendly. After 30 minutes of struggling we were finally able to start. From there on, it was fun. Tje historic imformation provided was scant. So be aware this is not a tour, it is a game, even though it is sold as a tour.