The International DJ Magazine (iDJ) did a comprehensive review of djay in their November issue:
Basically an Apple Mac plus djay equals two onscreen, fully scratchable turntables that are iTunes-compatible and come with a whole host of effects and sampling functions.
And they liked what they saw:
algoriddim have embraced the richness the OS X system to offer the DJ a whole new experience in DJ software. There are no compromises for cross-platform compatibility here — djay even looks like a Mac program. What really excites me is that algoriddim has embraced the more advanced audio processing capabilities that OS X has to offer.
To which we say: they nailed it. Read the full djay review, then get your personal DJ for iTunes!