I am just setting things up but this is a great strumming app and it has great internal guitar sounds much less takes midi in and out. It needs a few things like being able to title your chord banks, drag and drop chord library, and being able to set up more than 6 chords. The internal guitar sound are quality and with midi in and out the layering options are emended on the iPad. I find myself practicing the chord progressions on the Ipad firs before using them with the12 Step. Anybody else using it?