I've been using the Beta of Caustic Remix for about 6 months now and it's become my tool of choice to arrange pattern heavy, repetitive Techno / Tech House / Minimal type tracks.
It's quick, intuitive and adds an element of spontaneity / performance to arrangements. I love it
These were written in Caustic for Android, arranged into scenes in Caustic Remix and then recorded as a live take and saved as a Caustic song file. Back in Caustic I carried out a few edits before exporting a mixdown.