Fantastic!

Fabulous, productive work flow. Low cpu usage - runs faster than any other DAW on my iPad 3. I mean, no hiccups, it just flows!

Great sounds. Excellent Youtube tutorials. Free Mac and Windows versions*. Hard to go wrong here.

* The developer could easily charge for this app on other platforms ... why he doesnt is beyond me.

KomodoVan about Caustic, v3.1.2