This app is beautiful and so far no issues. I run ravenscroft, Neo Soul, FM Tines, galileo2, and 2 instances of pure synth platinum 2 hosted by AUM, and controlled by Midi Designer Pro on my ipad pro as a live keys rig, and all rock solid. Fabulous! GM apps are so good.
My only wish from their apps is that they respond to midi programme change , fortunately the new feature of midi preset change in AUM has saved the day in this regard (Unless I’m missing something from their apps).
Beautiful sounds, makes me wish I could play keys worth a damn. Will definitely sample videos of better musicians playing with this app tho.