I dont mind the current model. I bought the game, but never used any IAP yet. To be honest i dont really find a use for it. Currently on normal difficulty. It isnt Elite Beat Agents, but for me, it's still one of the better music apps on the iOS. I just love it despite not being able to use the other personas. EDIT: And if it's any consolation, i only used Default Serenity because i like her beat better than Asmodeus.