Whilst this was posted a few weeks ago it still makes for an interesting read and a sort of comparison between Patterning and Rhythm Necklace. I'm not sure about his complaints, but then, each to their own I suppose.
It's an interesting read nevertheless (link to post).
If you don't know Patterning, you can find it here on the app store:
If you don't know Rhythm Necklace, you can find it here on the app store: