omfg.
It's absolutely the most mindblowingly cool instrument app I've ever used. The ability to fucking create your own beats via taping - or the cool dragging of instrument loops over to a jam window - or both at the same time - is fucking AWESOME.
omfg.
It's a total blast and allows you to get amazing beat shit going in way that you flat out could not do on anything but the iPad. There's just no other control that could do this.
Oh, and I can also bang out MIDI beats into an Ableton clip and send that via network MIDI to DrumJam. I can then drag over the instruments - if I'm feeling lazy - and they start cranking out a beat that's IN SYNC BECAUSE THE APP SUPPORTS CLOCK SYNC.
Built-in filter with XY pad.
Easy to grab other FX.
omfg.
Win.
WIN.
