New to the vArranger2, but I just purchased an OMB guitar and their app is less than desirable. Purchased the Va2 and it works really well with it. You'll need to set the right to full keyboard so the OMB recognizes chord changes, also I had to increase the chord velocity to about 70 to cut down on unwanted chord changes, but that may just be my playing style. Still checking out other aspects but so far so good.