From beginning to end, technology and data problems with the medallion app caused headaches and stress. Without being able to access the app until 2 days before sailing, we were unable to book reservations for meals and services. On board, the app continued to malfunction, yet customer services could not access the app either. Because it is linked to every aspect of the ship, it proved to be more than a little annoying - especially when it didn’t open the room door. Princess did a very poor job of communicating in customer service and tech support - of the four times I was promised a call back, only 1 person (April in the Scottsdale call center) followed through. It is very unlikely I would give princess another chance, and I most certainly will give honest feedback to my friends. Jmb