Great Approach!

Its got the same level of responsiveness as many raw music controllers but its loaded with cuts from sick tracks. A FAST remix tool if your familiar with track sequencers. Even if your not its pretty intuitive to figure out. A lot of people on here talking about crashing but I havent experienced a single crash yet. Using an iPhone 5. runs like a dream, sounds good, really low latency. Excellent tool for sketching out drafts on the train commute.
Feature wish list for future versions:
lock tempo to external sync
tandem OSC output of certain controller values

timelight about Ninja Jamm - DJ and Remix App