I have not used the Piano Partner 2 app, but have used the Piano Designer App for the Roland FP90. I know that’s not the feedback you’re looking for butI loved the Designer app. It allowed you to adjust many settings just as a piano technician would be able to do, everthting from the amount of hammer noise, to the adjusting a virtual lid position. There were some presets too that allowed the user to chose a setting based on how some world famous piano techs would adjust a piano. Overall great app.

Maybe Bill Lewis will weigh in on this since he owns an FP90.