1.04 (and previous versions for that matter) have been working very well for me so far, thumbs up!
I've been using the iOS version with a Yamaha MD-BT01 with both an axe-fx II & ax8.
Only time I've had any issue is when I've been also editing with axe-edit open at same time, which probably is a no-no, and that has led to some weird x/y state misreporting.
Was thinking about some request stuff for new versions.
1) A performance "pedalboard" mode that can sort of act like a touch virtual MFC. So one could set the screen to show giant scene & FX switches. Also would be great if the size was customizable so you could have a virtual foot controller with as many rows/columns of switches as one desired.
2) A way to turn metronome on/off. Bonus points if you can figure out how to control its volume as well ;-)